What is the area (in sq cm) of a rectangle of perimeter 48 cm and brea

| What is the area (in sq cm) of a rectangle of perimeter 48 cm and breadth 10 cm?

A. 140

B. 480

C. 240

D. 440

Right Answer is: A

SOLUTION

Let the length of the perimeter be l cm, then
2(l + b) = 48 cm
l + 10 = 24
l = 14 cm
Then, area of the rectangle = l × b
= 14 × 10
= 140 cm2

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