Question

A block of wood has the shape of a triangular prism. The bases

are right triangles. Find its surface area.
4.5 in.
6 in
16 in
75 in.
The surface area is in.2.

Answer 1

225 in.²

Explanation:

Surface area of triangular prism = bh + (s1 + s2 + s3)*L

Where,

b = 4.5 in.

h = 6 in.

s1 = 7.5 in.

s2 = 4.5 in.

s3 = 6 in.

L = 11 in.

Plug in the values

Surface area = 4.5*6 + (7.5 + 4.5 + 6)*11

Surface area = 27 + 198 = 225 in.²