Question

the area of the floor of a room is 45sq.m.if the length is 9m, find the perimeter
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Answer 1

Answer:

28 m

Explanation:

Area of floor = 45 sq.m

Length = 9 m

Breadth = (45/9) m = 5 m

Perimeter = 2 (l+b) = 2 (9+5) m = 2 (14) m = 28 m

Answer 2

area of floor = l×b

45 = 9×b

5 = b

now,

perimeter = 2( L+B)

2(9+5)

2×14

28m