Answer:
22 square yards
Explanation:
let :
length (l) = 3yd
breadth (b) = 2yd
height (h) = 1yd
the total surface area formula is:
2(l×b) + 2(l×h) + 2(h×b)
= 2(3×2) + 2(3×1) + 2(1×2)
= 2×6 + 2×3 + 2×2
= 12 + 6 + 4
= 22
and we need to fine area so the unit will be in square yards
Hence, the total surface area is 22 square yards