Question

In a rectangle, the length of one of its sides is half the length of its adjacent side. If the perimeter of rectangle of 43 units, find its area.
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Answer 1

Answer:

let

length = L

breadth = L/2

perimeter = 2( l + b)

43 = 2( l + l/2)

43 = 2( 3/2 L)

43 = 3L

l = 43/3 = 14.3

breadth = L/2 = 14.3/2 = 7.15

area = length × breadth

= 14.3 × 7.15 = 102.2