Question

What is the surface area of the following triangular prism?

Answer 1

My answer the question what is the surface area of a triangular prism is 126 yards2

Answer 2

Answer:

$\text{The surface area of triangular prism is }96 yd^2$

Step-by-step explanation:

Given the triangular prism with dimensions.

we have to find the surface area of triangular prism.

Base and height of right triangle of triangular prism are

$Base, b=4 yd$

$Height, h=9 ft=9\times 0.3333...=3 yd$

$Height, H=7 yd$

The surface area of triangular prism can be calculated as

$(Base\times Height)\text{of right triangle}+\text{sum of sides of triangle}\times H$

$=bh+(s_1+s_2+s_3)\times H$

$=(4\times 3)+(3+4+5)\times 7$

$=12+12\times 7=12+84=96 yd^2$

$\text{hence, the surface area of triangular prism is }96 yd^2$

Option D is correct.