Question

What is the surface area of the following triangular prism?

that is the correct question please tell me if my answer id right or wrong and what is th eanswe r

plz help

Answer 1

64.5 is the answer because I have done that lesson before and got it right Hope it helps if it does give me a like and a five-star rating

Answer 2

This question was answered but no solution was given.

We already solve for the B or area of the triangular base which was 5.25cm².

There are 2 triangular faces in the prism so 5.25cm² x 2 = 10.50cm²
There are 3 rectangular face in the prism, we need to get the area of each.

area of a rectangle = length x width
rectangle 1: 5 cm x 4 cm = 20 cm²
same dimension with rectangle 2. so, area is 20 cm² also
rectangle 3: 5 cm x 2.8 cm = 14 cm²

let us all add up the area of each surface.
2 triangle = 10.50 cm²
3 rectangles = 20 cm² + 20 cm² + 14 cm² = 54 cm²

10.50 cm² + 54 cm² = 64.50 cm²