Question

LAST QUESTION PLEASE ANSWER!!

A solid is composed of squares and equilateral triangles. Its net is shown below:


The area of each triangle is 21 square units. The surface area of the triangular prism is _____ square units. (Input whole number onl

Answer 1

The surface area consists of three squares and two triangles.

The squares have side length of
`7`, so their area is
`7^2=49`.

The area of each triangle is
`21` (this is given).

So, the total area is

`3*49 + 2*21 = 147 + 42 = 189` units squared

Answer 2

the answer should be 189