Answer: S.A = 67
Explanation:
The formula for calculating the surface area of right rectangular prism is given by :
Surface area = 2 (wl + hl + hw )
w = 5
l = 4
h = 1.5
wl = 5x4 = 20
hl = 1.5 x 4 = 6
hw = 5 x 1. 5 = 7.5
substituting into the formula
Surface area = 2 (20 + 6 + 7.5)
S.A = 2 ( 33.5)
S.A = 67