a triangular prism is 20 millimeters long and has a triangular face with a base of 24 millimeters and a height of 16 millimeters. the other two sides of the triangle are each 20 millimeters. what is the surface area of the triangular prism?

The surface area of the prism is

Step-by-step explanation:

we know that

The surface area of the triangular prism is equal to

where

B is the area of the triangular face

P is the perimeter of the triangular face

L is the length of the triangular prism

Find the area of the triangular face B

Find the perimeter of the triangular face P

we have

substitute the values

-7

step-by-step explanation:

x^2 + 18x + 74 = (x + 9)^2 - 81 + 74

= (x + 9)^2 - 7.

so q = -7.