Question

A triangular prism has a base of 9 and height of 7. The length of each side of the triangular prism is 9 and the width of the entire prism is 7. What is the surface area?

Answer 1

Therefore,

The surface area is

`\textrm{Total Surface Area of Prism}=252\ units^(2)`

Explanation:

Shape is triangular prism,

Base = b = 9

Height = h = 7

The length of each side of the triangular prism ,

s₁ = s₂ = s₃ = 9

Width of the entire prism

Width = W = 7

To Find:

The surface area = ?

Solution:

Total Surface Area of Prism is given by,

`\textrm{Total Surface Area of Prism}=bh + (s_(1)+s_(2)+s_(3))W`

Where,

b = Base

h = Height

s₁ , s₂ , and s₃ = length of each side of the triangular prism

W = width of the prism

Substituting the values we get

`\textrm{Total Surface Area of Prism}=9* 7 + (9 + 9 + 9)* 7=252\ units^(2)`

Therefore,

The surface area is

`\textrm{Total Surface Area of Prism}=252\ units^(2)`