The perimeter of a rectangle is 22 cm and its area is 28 cm². Find the length of its shorter side (in cm).

4

Perimeter of rectangle = 2( l + b)

ATQ,

2( l + b) = 22

( l + b ) = 11

Area of rectangle = l × b

ATQ,

l × b= 28

So, l and b can be 7 & 4

Because , 7 + 4 = 11

& 7 × 4 = 28 

So, Length of shorter side = 4 cm

The correct answer is Option (3) → 4