Perimeter is the sum of the length of the shape. A rectangle has two equal sides. Hence the total length (Perimeter) of a rectangle =2L+2B, where L= Length and B= Breadth ⇒ The perimeter of the rectangle =2×10+2×6=20+12=32 A square has all 4 sides equal. Hence the perimeter of a square =4×L, where L means Length Since the perimeter of the rectangle is the same as the perimeter of the square, ⇒ The perimeter of the square is also 32 ⇒4L=32
Divide both sides by 4 4L∕4=32∕4 ⇒L=8 Area of a square = Length × Breadth Length = Breadth ⇒ area of a square = Length × Length =L2 Length of the square is 8 ⇒ the area of the square =8×8=64cm2