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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.)

Nickolas Mar 14, 2019

#1**+1 **

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?

Guest Mar 14, 2019

edited by
Guest
Mar 14, 2019

#4**0 **

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?

Guest Mar 14, 2019