1.

If the dimensions of a room are I, b and h, ( . l length, l breadth and h hight) them which of the following is the area of its four walls?

A. 2h(1 + b)
B. 2h (1 + h)
C. 21(h + h)
D. 2h + 1 + b
Answer» B. 2h (1 + h)


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