Question

Find the surface area of the right triangular prism below.
108 in2

48 in2

51 in2

102 in2

Answer 1

http://static.k12.com/eli/bb/817/-1/0/2_36869_44974/-1/5c45df68fdad740c9f94d22ea5f92dd60c7a03f7/media/2996905feb68f95822951caf3b5b9196a818ec90/mediaasset_651518_1.jpg

Answer 2

Treat the face of the triangle as the base and use the formula
\[(2*base)+(perimeter*height)\]
The perimeter is the perimeter of the base and the height would be the length of the rectangle.

Answer 3

idk which one is which @LegendarySadist

Answer 4

No need to tag me, I'm right here. And when you say you don't know which one is which, what are you referring to?

Answer 5

like in the equation you said what am i plugging in where?

Answer 6

The base is the area of the triangle, the perimeter is the perimeter of the triangle, and the height is the length of the rectangle.

Answer 7

ohh ok but how do i find them, like the equations

Answer 8

Equations?

Answer 9

yea the area and perimeter

Answer 10

Area of a triangle: \[\frac{ height*base }{ 2 }\] Use the Pythagorean theorem to find the other leg, and then add the legs for the perimeter.

Answer 11

I'm so confused..

Answer 12

Why are you doing surface area problems if you don't know how to do area or perimeter? Those should come first in any course.

Answer 13

idk lol it so confusing

Answer 14

?? @LegendarySadist