Find the surface area of a 12 cm x 4 cm x 3 cm brick. Select.
A) 84 cu cm. B) 124 cu cm. C) 164 cu cm. D) 192 cu cm. E) None
Sol.   Surface area = [2(12 x 4 + 4 x 3 + 12 x 3)]   = (2 x 96)   = 192 cu cm.   Answer 192 cu cm.
<result>D</result>
Find the surface area of a 12 cm x 4 cm x 3 cm brick.