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A solid is composed of squares and equilateral triangles. Its net is shown below: The area of each triangle is 1.5 square units. The surface area of the triangular prism is _____ square units. (Input whole number only.)

Mar 14, 2019

#1
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surface area of the triangular prism  =  area of square + area of square + area of square + area of triangle + area of triangle

We are given that the side length of each square is 2 units.

area of square  =  side length * side length

area of square  =  2 units * 2 units

area of square  4 square units

We are given that

area of triangle  1.5 square units

Once again,

surface area of the triangular prism  =  area of square + area of square + area of square + area of triangle + area of triangle

Can you figure out what to do next?

Mar 14, 2019
edited by Guest  Mar 14, 2019
#2
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WOW THANKS LET ME SEE!!

Nickolas  Mar 14, 2019
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I am not sure really

Do we add the calculations up of are sides are lenth and are with??

Nickolas  Mar 14, 2019
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Imagine you have 3 baskets of apples and 2 bowls of apples.

Each basket contains 5 apples. And each bowl contains 3 apples.

How many apples do you have altogether?

It would be   (5 + 5 + 5 + 3 + 3) apples  =  21 apples

Now for the real question:

There are 3 squares and 2 triangles.

We know each square contains 4 square units. And we know each triangle contains 1.5 square units.

The question is.... How many square units are there altogether?

Mar 14, 2019