Question about Mcgraw-Hill Computers & Internet

Geometry ccss chapter 10

It is the diagonal of a square 14" on a side. So by Pythagoras' Theorem

D^ = s^2 + s^2 = 392

D = 19.8"

Posted on Mar 30, 2014

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Posted on Jan 02, 2017

area formula is PI x r squared

that is 3.1417 times the radius of the circle squared

example is:- 3.1417 times 3 inches squared =3.1417 times 3x3=3.1417x9=28.279 square inches if you want to work back from a circumference measurement, the formula for circumference is 2 x PI x radius or PI x diameter

if you have a circumference of 12 inches then the dia is calculated 12 inches = dia x PI to get the diameter , divide the 12 inches by PI and that will be the diameter so that is 12 divided by 3.1417 =3.819 inches

now you can go from the first formula the radius is the diameter divided by 2 so the radius will be 3.819 divided by 2 = 1.909 inches

so applying the area formula it becomes 3.1417 times 1.909 times 1.909 =11.458 square inches

to find your answer simply substitute the dimensions in place of the example figures.in the relevant formula.

that is 3.1417 times the radius of the circle squared

example is:- 3.1417 times 3 inches squared =3.1417 times 3x3=3.1417x9=28.279 square inches if you want to work back from a circumference measurement, the formula for circumference is 2 x PI x radius or PI x diameter

if you have a circumference of 12 inches then the dia is calculated 12 inches = dia x PI to get the diameter , divide the 12 inches by PI and that will be the diameter so that is 12 divided by 3.1417 =3.819 inches

now you can go from the first formula the radius is the diameter divided by 2 so the radius will be 3.819 divided by 2 = 1.909 inches

so applying the area formula it becomes 3.1417 times 1.909 times 1.909 =11.458 square inches

to find your answer simply substitute the dimensions in place of the example figures.in the relevant formula.

Aug 24, 2015 | Office Equipment & Supplies

Hi Debbie:

You still get to use your calculator, but you need to use the mathematical formulae dealing with circles.

Area = pi times r squared

Volume of a cylinder = Area (of one end) times length.

For your cement mixer, (Average the diameter for simplicity)

All of the measurements need to be in the same units, lets use inches, then convert it to cubic feet.....

the volume would be:

pi (22 divided by 7)

times

1/2 diameter

times

1/2 diameter

times

depth

For my ancient mixer that would be:

22 / 7 x 10" x 10" x 22" = 6,914 cubic inches

1 cubic foot equals 12" x 12" x 12" equals 1728 cubic inches.

6,914 divided by 1728 equals 4 cubic feet.

Now we don't fill it right up, but that is its capacity.

Hope that helps.

By the way, my mixer likes 10 shovel fulls of navvy, 2 shovels of type 10 cement, and about 2 quarts of water to get a nice mix.

I do the water first,

then 5 navvy

then 2 cement

then another 5 navvy,

then just enough water to get the right consistency.

Cheerfuls!

You still get to use your calculator, but you need to use the mathematical formulae dealing with circles.

Area = pi times r squared

Volume of a cylinder = Area (of one end) times length.

For your cement mixer, (Average the diameter for simplicity)

All of the measurements need to be in the same units, lets use inches, then convert it to cubic feet.....

the volume would be:

pi (22 divided by 7)

times

1/2 diameter

times

1/2 diameter

times

depth

For my ancient mixer that would be:

22 / 7 x 10" x 10" x 22" = 6,914 cubic inches

1 cubic foot equals 12" x 12" x 12" equals 1728 cubic inches.

6,914 divided by 1728 equals 4 cubic feet.

Now we don't fill it right up, but that is its capacity.

Hope that helps.

By the way, my mixer likes 10 shovel fulls of navvy, 2 shovels of type 10 cement, and about 2 quarts of water to get a nice mix.

I do the water first,

then 5 navvy

then 2 cement

then another 5 navvy,

then just enough water to get the right consistency.

Cheerfuls!

May 10, 2015 | Office Equipment & Supplies

What game does this relate to ?

A square is inscribed in a circle and a second circle is inscribed in the square. What is the relationship between the areas of the two circles.

Literally, squaring the circle means devising the straightedge-and-compass construction of a square whose area equals that of a given circle. T square the circle

A square is inscribed in a circle and a second circle is inscribed in the square. What is the relationship between the areas of the two circles.

Literally, squaring the circle means devising the straightedge-and-compass construction of a square whose area equals that of a given circle. T square the circle

May 04, 2015 | Video Game Consoles & Games

Just a little over 53.3 gallons

Mar 20, 2015 | Water Heaters

Simply calculat:

How many square inches are in 22 16 and 12 inch diameter circle Yahoo...

How many square inches in 15 inch diameter bbq grate

Convert Me Com online units conversion

How many square inches are in 22 16 and 12 inch diameter circle Yahoo...

How many square inches in 15 inch diameter bbq grate

Convert Me Com online units conversion

Mar 03, 2015 | Thane Q-BBQ Grill

Radius square x pi = area of circle

6" x 6" x 3.1415 = 113 square inches

113 square inches x 40 inches = 4523 cubic inches

231 cubic inches in 1 gallon

4523 divided by 231 = 19.58 gallon

http://waterheatertimer.org/pdf/Water-heater-Formulas-and-terminology.pdf

Gene

6" x 6" x 3.1415 = 113 square inches

113 square inches x 40 inches = 4523 cubic inches

231 cubic inches in 1 gallon

4523 divided by 231 = 19.58 gallon

http://waterheatertimer.org/pdf/Water-heater-Formulas-and-terminology.pdf

Gene

Sep 09, 2014 | Water Heaters

(pi)R squared (Fixya won't let me use the sign for Pi)

Area of a circle=pi*radius^2 or pi times radius times radius

example: suppose the radius of a circle is 10 inches, then the Area of the circle would be pi times 10 times 10 or 100*pi

pi represents the circumference (distance around) of a circle / diameter and for any circle is constantly the same number which is approximately 3.14

so in my example 100*pi=100*3.14 or 314 square inches

Area of a circle=pi*radius^2 or pi times radius times radius

example: suppose the radius of a circle is 10 inches, then the Area of the circle would be pi times 10 times 10 or 100*pi

pi represents the circumference (distance around) of a circle / diameter and for any circle is constantly the same number which is approximately 3.14

so in my example 100*pi=100*3.14 or 314 square inches

Jul 03, 2014 | Computers & Internet

I will not try to guess what that diameter represents, so I will give you all mensuration formulas for the area of a regular polygon.

**s** is the measure of the side,** r** the radius of the inscribed circle, **R** the radius of the circumscribed circle, and **n** the number of sides.

If the angle unit in your calculator is the degree, use 180 instead of Pi. Use the formulas with PI if angle unit is set to radians.

In the formulas on the last line of the display screen (the formulas with sine functions) the radius r should be R (circumscribed circle radius). cot is the reciprocal of the tangent function**(cot(x)=1/tan(x) )**

If the angle unit in your calculator is the degree, use 180 instead of Pi. Use the formulas with PI if angle unit is set to radians.

In the formulas on the last line of the display screen (the formulas with sine functions) the radius r should be R (circumscribed circle radius). cot is the reciprocal of the tangent function

Apr 14, 2014 | Office Equipment & Supplies

pi x radius square

ex circle with a 10" diameter

3.14 x 5 x 5

= 78.50 square inches

ex circle with a 10" diameter

3.14 x 5 x 5

= 78.50 square inches

Feb 01, 2014 | Office Equipment & Supplies

You can use this tool: http://www.mathopenref.com/trianglecircumcircle.html

7.12 is the radius of the circumcircle, also called the triangle's circumradius.

7.12 is the radius of the circumcircle, also called the triangle's circumradius.

Sep 25, 2011 | Office Equipment & Supplies

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