The perimeter of a rectangle having length as $10.5 c m$ is $28 c m$ . Its area is $_c m 2 .$

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Solution

Step 1:calculate breadth from perimeter of rectangle
Perimeter of Rectangle = $2 (L + B)$
$28 = 2 (10.5 + B) 14 - 10.5 = B B = 3.5 c m$
Step 2:Calculate the area of rectangle
Area of Rectangle $= L x B$
$= 10.5 x 3.5 = 36.75 c m 2$

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