Question

If X = 9 units, Y = 5 units, Z = 21 units, and h = 9 units, what is the surface area of the triangular prism shown above?

Answer 1

Surface area of triangular prism = 528

Explanation:

Surface area of triangular prism = (Base x Height) + 2 (length x side) + (length x base)

SA = bh + 2Ls + Lb

Putting given values : b = Y = 5 , h = 9 , s = x = 9 , L = z = 21

(5 x 9) + (2 x 21 x 9) + (21 x 5)

= 45 + 378 + 105

528