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What is the surface area of the triangular prism?

A. 360 in²
B. 19 in²
C. 6 in²
D. 150 in²
E. 940 in²
F. 180 in²
G. 3,120 in²

Answer :

A triangular prism have 5 faces

3 rectangles ,and 2 triangles

Rectangles area= 13•4 + 12•4 + 5•4 = 52 + 48+ 20

. = 120 in2

Triangles area= 12•5/2 + 12•5/2= 30 + 30

. = 60 in2

Sum of both areas= 120 + 60 = 180

Then answer is

OPTION G) 180 in2

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