Question about The Learning Company Achieve! Math & Science Grades 1-3 (381933) for PC, Mac

You shape is a rectangle and a right angled triangle. You need to divide it into the rectangle and the right angled triangle and add the areas.

Area of a rectangle is length * width

Then just add the two together.

Posted on Oct 10, 2009

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Posted on Jan 02, 2017

Break it up into two figures, one a rectangle and the other a triangle.

Area of the rectangle is length times width.

Area of the triangle is base times height divided by 2.

Good luck,

Paul

Area of the rectangle is length times width.

Area of the triangle is base times height divided by 2.

Good luck,

Paul

Nov 14, 2016 | Office Equipment & Supplies

If your rocking chair cushions are looking weary and old, you don't need to buy a new rocking chair. If you can sew, follow these simple tips and re-upholster your existing cushions or make new ones altogether. Your friends will be congratulating you on your brand new rocking chair.

1. Draw a design for your rocking chair cushion. If you are new to this, keep it simple with a rectangle or square design.

2. Measure the area for the cushion, taking both length and width and then add 3 cms to each, and this will be the amount of fabric you need.

3. When you buy or cut out the cushion padding, use the original measurements ie without the extra 3cm you added on to the material.

4. Your padding material should be between 1 and 1 and a quarter inches thick.

5. Now cut out your cushion fabric. You need 2 pieces for each cushion. Make sure you keep the lines straight and that they are both exactly the same .

6. Start at a corner and sew a piping (double seam) along the edge. Then sew the 2 connecting sides to that new seam and this should form a pocket that is connected on 3 sides but has an open top.

7. Now stuff the cushion. Don't rush this part. Make sure none of the foam is folded over or squashed up inside the cover.

8. Now sew the final seam together. It can be a bit tricky so make sure it's lined up properly.

9. Once you've finished the basic cushion you can always add extra details such as trimming or tassles.

Enjoy!

1. Draw a design for your rocking chair cushion. If you are new to this, keep it simple with a rectangle or square design.

2. Measure the area for the cushion, taking both length and width and then add 3 cms to each, and this will be the amount of fabric you need.

3. When you buy or cut out the cushion padding, use the original measurements ie without the extra 3cm you added on to the material.

4. Your padding material should be between 1 and 1 and a quarter inches thick.

5. Now cut out your cushion fabric. You need 2 pieces for each cushion. Make sure you keep the lines straight and that they are both exactly the same .

6. Start at a corner and sew a piping (double seam) along the edge. Then sew the 2 connecting sides to that new seam and this should form a pocket that is connected on 3 sides but has an open top.

7. Now stuff the cushion. Don't rush this part. Make sure none of the foam is folded over or squashed up inside the cover.

8. Now sew the final seam together. It can be a bit tricky so make sure it's lined up properly.

9. Once you've finished the basic cushion you can always add extra details such as trimming or tassles.

Enjoy!

on Aug 21, 2012 | Furniture

Since acre is a measure of area and feet is a measure of distance, you need to calculate the perimeter of a lot with an area of half an acre. Here are the formulas:

1. If the lot is a square (all 4 sides of equal length), multiply the length of one side by 4, to get the # of feet required to walk a half acre piece of land.

2. If the lot is rectangle: (heightx2)+(widthx2).

3. If the lot is a triangle, add up all three sides.

1. If the lot is a square (all 4 sides of equal length), multiply the length of one side by 4, to get the # of feet required to walk a half acre piece of land.

2. If the lot is rectangle: (heightx2)+(widthx2).

3. If the lot is a triangle, add up all three sides.

Dec 09, 2014 | Visual Land Audio Players & Recorders

A pyramid has 5 sides including the base. If the base is a rectangle L long and W wide, its area is L*W.

The other sides are triangles. If the height of the pyramid is H, the triangles that are L wide at the base will have a height of the square root of half of W squared plus H squared, or SQRT((.5*W)^2+H^2) and the two that are W wide at the base will have a height of SQRT((.5*L)^2+H^2). The area of a triangle is .5*height*base, so the total surface two triangles with the same height and base is 2*.5*height*base = height*base.

So, the total surface area of a pyramid L long by W wide by H tall would be:

L*W (the area of the base)

+ L*SQRT((.5*W)^2+H^2) (the area of the 2 triangles with base L)

+ W*SQRT((.5*L)^2+H^2) (the area of the 2 triangles with base W)

Hope this is helpful!

The other sides are triangles. If the height of the pyramid is H, the triangles that are L wide at the base will have a height of the square root of half of W squared plus H squared, or SQRT((.5*W)^2+H^2) and the two that are W wide at the base will have a height of SQRT((.5*L)^2+H^2). The area of a triangle is .5*height*base, so the total surface two triangles with the same height and base is 2*.5*height*base = height*base.

So, the total surface area of a pyramid L long by W wide by H tall would be:

L*W (the area of the base)

+ L*SQRT((.5*W)^2+H^2) (the area of the 2 triangles with base L)

+ W*SQRT((.5*L)^2+H^2) (the area of the 2 triangles with base W)

Hope this is helpful!

May 23, 2014 | Encore Math Advantage Algebra II and...

Calculate area of triangle and rectangle. Get the values from the area function that is calculated by both classes then display that area using your own class.

Sep 06, 2012 | Acer Computers & Internet

Area - The size of a surface

Specific

Square

Area = Side x Side

Rectangle

Area = Length x Width

Triangle

Area = Base x Height (cut the answer in half and that is your area)

Parallelogram

Area = Base x Height

Circle

Area = Radius x Radius x 3.14

Specific

Square

Area = Side x Side

Rectangle

Area = Length x Width

Triangle

Area = Base x Height (cut the answer in half and that is your area)

Parallelogram

Area = Base x Height

Circle

Area = Radius x Radius x 3.14

Aug 30, 2011 | Computers & Internet

o find the area of a triangle, multiply the base by the height, and then divide by 2. The division by 2 comes from the fact that aparallelogram can be divided into 2 triangles. For example, in the diagram to the left, the area of each triangle is equal to one-half the area of the parallelogram.

Since the area of a parallelogram is , the area of a triangle must be one-half the area of a parallelogram. Thus, the formula for the area of a triangle is: or where is the base, is the height and**·** means multiply.
The base and height of a triangle must be perpendicular to each other. In each of the examples below, the base is a side of the triangle. However, depending on the triangle, the height may or may not be a side of the triangle. For example, in the right triangle in Example 2, the height is a side of the triangle since it is perpendicular to the base. In the triangles in Examples 1 and 3, the lateral sides are not perpendicular to the base, so a dotted line is drawn to represent the height.

Since the area of a parallelogram is , the area of a triangle must be one-half the area of a parallelogram. Thus, the formula for the area of a triangle is: or where is the base, is the height and

May 13, 2011 | Computers & Internet

The diameter of the circle is the diagonal of the rectangle use Pythagoras this rectangle is a made from two 3,4,5 triangles, so the diameter is 5cm, the radius will be 2.5cm don't forget the BODMAS ordering rule (Brackets of Division Multiplication Addition and Subtraction) Also rounding to 2 decimal places. This solution is based on all four corners of the rectangle touching the circumference of the circle.

Area of a circle is P (22/7) i x Radius (squared ^2) ====> 22/7 x 2.5cm ^ 2 ====> 22/7 x 6.25cm

TOTAL AREA of CIRCLE = 19.64 cm^2

Area of the rectangle is length x width ====> 4 cm x 3 cm

TOTAL AREA of RECTANGLE = 12 cm ^2

The remaining portion is the circle area minus the rectangle 19.64-12 = 7.64 cm^2

SIMPLES brought to you by SpideRaY @ http://www.windowstipsclub.com

Area of a circle is P (22/7) i x Radius (squared ^2) ====> 22/7 x 2.5cm ^ 2 ====> 22/7 x 6.25cm

TOTAL AREA of CIRCLE = 19.64 cm^2

Area of the rectangle is length x width ====> 4 cm x 3 cm

TOTAL AREA of RECTANGLE = 12 cm ^2

The remaining portion is the circle area minus the rectangle 19.64-12 = 7.64 cm^2

SIMPLES brought to you by SpideRaY @ http://www.windowstipsclub.com

Jan 31, 2011 | Computers & Internet

Hello,

Thanks for using FixYa.

- This lot does not have the form or a regular quadrilateral (rectangle, square, parallelogram, etc.)
- So you cannot calculate its area, you have to know exactly the shape it has.
- With polygons, one usually cuts them into triangles.
- You have to cut it into two triangles,
- measure the base and the height of each triangle,
- use the area formula for the triangle ( area = heightX base/2)
- After you calculate the areas of both triangles, you add them to get the area of the the whole lot in ft^2.
- Using the conversion formula between acres and ft^2 which is 1 acre=43560 ft^2, you divide the area of the lot in square feet by the number 43560 ft^2 and express the result as a percentage or a fraction .

Thanks for using FixYa.

Nov 19, 2009 | Calculated Industries Pocket Real Estate...

Hello,

There is no such thing as an**irregular** rectangle. This being said, I believe that the area of a parallelogram is **still** equal to the product of the base by the height.

Draw your parallelogram with one side horizontal. From the next corner, draw a line perpendicular to the base. The length of the segment you just drew is h. If b is the length of the base the area is b*h.

Hope it helps.

There is no such thing as an

Draw your parallelogram with one side horizontal. From the next corner, draw a line perpendicular to the base. The length of the segment you just drew is h. If b is the length of the base the area is b*h.

Hope it helps.

Oct 08, 2009 | The Learning Company Achieve! Math &...

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For the irregular rectangle, it depends on how much information is given. Normally you can break the figure into rectangles and triangles and them add the areas together. Are any dimesions and/or angles given?

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