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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.)
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?
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?
