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What is the surface area formula for triangular prism?

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SOURCE: what is the formula for getting the surface area

Surface area of any prism is the sum of the areas of the sides
A trapezium is A = h(a + b)/2
h is the perpendicular height, a and b are the parallel sides

Posted on Aug 18, 2011

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Rectangular prism is made from centimeter cubes. What are the dimensions of the prism width x length x height? What is the surface area of the prism? What is the volume of the prism?


Dimension of the prism is the number of cubes in width x length x height.

Surface area is 2(w x l) + 2(l x h) + 2 (wxh)

Volume is the number of cubes.

Good luck,

Paul

Dec 07, 2016 | Office Equipment & Supplies

1 Answer

How do i do volume and surface area of triangular prism on ixl


Hello Jacqueline;

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The length on one side of the end triangle is "a"

The area of the end triangle is: (a x a) x 0.433 = Surface Area

The surface area of the prism face = a x length.

The volume is: The surface area of the end x the surface area of the face.


Mar 06, 2015 | ixl.com

1 Answer

How do i work out the volume of prisms mymaths task


Presuming this is a triangular prism, just get the area of triangle and then multiply by the length of the prism. So, 1/2 * B * H of triangle times the L (length) of prism.

Oct 28, 2014 | Office Equipment & Supplies

1 Answer

What is the rectangular prism total surface formula


Note the prism has Length, Width, Height

A = 2( WL + WH + LH )

May 23, 2014 | Computers & Internet

1 Answer

Volume of triangular pyramid


Here is to get you started. To increase the size of the image do a CTRL Plus (+) in your browser.
You need to calculate the slant height of the pyramid for the formula of the lateral area. You should find a value of (1/2)*SQRT(203) or about 7.1239 cm

913b74c4-c453-4afa-be3a-c3e781816e8d.png

You need to calculate the altitude (height) of the pyramid from the apex (summit) to the center of the base triangle (center of inscribed circle, barycenter, orthocenter). The hypotenuse of such triangle is the slant height. One leg is the altitude (to be found), the measure of the second leg is (1/3) the altitude of the equilateral triangle that forms the base. You should find (1/3) m MH= (1/3)* (11/2)*SQRT(3)
bc7a3bcd-ec6e-4936-9887-c6372904fe9f.png

1. Calculate the area of the base (use a formula for the equilateral triangle or the general formula for a triangle: you have its height MH ).
2. Lateral area = 3 times the area of triangle Triangle ECD (in yellow above).
3. Total area = area of base + lateral area.
4. Volume= (1/3)(Area of base)* (height of pyramid)
If you can see the details on the screen capture below, fine, Press CTRL + in your browser to increase the size.
1fbf065d-6c1d-440a-9069-783127aa9842.png

Mar 29, 2014 | Office Equipment & Supplies

1 Answer

What is the surface area and volume for 14ft 12ft 3ft?


If that is a right rectangular prism
Volume =14*12*3 c.f.
For the area here is the formula.
Total area of right rectangular prism =2*A_b +P_b*h
A_b= area of base (take 14*12 feet squares)
P_b is perimeter of base (14+12)*2 =52 ft.
h is the height (3 ft)
Lateral area =P_b*h=52*3 feet square
Add all areas.

Mar 05, 2013 | SoftMath Algebrator - Algebra Homework...

1 Answer

Surface area of a rectangular prism whose length is 7 cm.,width is 4 cm., and thickness is 5 cm.?


Since the 'base' and 'top' of any prism have the same shape, the surface area can be found by
  • surface area of prism = 2 * area of base + perimeter of base * H
So for the rectangular prism in your example..
  • surface area = 2LW + 2(L+W)H
  • = 2 * 7 * 4 + 2*(7+4)*5
  • = 56 + 2 * 11 * 5
  • = 56 +110
  • = 166 sq cm
Hope this helps

Sep 05, 2011 | Encore Math Advantage Algebra II and...

1 Answer

What is the formula for getting the surface area of a trapezoidal prism?


Surface area of any prism is the sum of the areas of the sides
A trapezium is A = h(a + b)/2
h is the perpendicular height, a and b are the parallel sides

Aug 10, 2011 | Encore Math Advantage Algebra II and...

1 Answer

What is rectangular prism?


Hello
Rectangular Prism/Cuboid Definition:
A Rectangular Prism/Cuboid is a solid figure bounded by six rectangular faces, a rectangular box. All angles are right angles, and opposite faces of a cuboid are equal. It is also a right rectangular prism.

Rectangular Prism/Cuboid Formula:
Area of Base(A) = l * w
Perimeter of Base(P) = 2l + 2w
Surface Area of Prism = 2(lw) + (2l + 2w)h = 2A + Ph
Volume of Prism = lwh = Ah
Diagonal of Prism = Sqrt(l² + w² + h²)
where
l = length, w = width, h = height

Hope this helps, if so do rate the solution

Jan 15, 2011 | MathRescue Word Problems Of Algebra Lite

1 Answer

Excel formula


the formulae for the surface area of round disc is
pi * r * r
where pi=3.14 and r =radious of disc= diametre/2 

for this 1st u have 2 calculate the radious of the disc that is
180/2=90mm
then convert it to  m by dividing 1000 ,so radious=90/1000=0.09 m
finally calculate the area= 3.14 * 0.09 * 0.09=0.025434 sq metres
for 38 disc multiply 38 with the above area that is
0.025434 * 38=0.966492 sq metres

in excel 2007  u can do it more easily by going 2 formulas tab.
Under formla tab click on engineering formula and  then convert
here u can convert from mm to m
after converting use the above formula i just told u.

Feb 27, 2008 | Computers & Internet

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