Q33 of 131 Page 226

The perimeter of the figure ABCDEFGHIJ is

Perimeter = sum of sides

So, AJ + IL + IH + HG + GF + FE + DE + CD + BC + AB

⇒ (AJ + IH + GF + BC) + 3 + 5 + 2 + 20 + 4 + 6

⇒ DE + 40 [AJ + IH + GF + BC = DE]

⇒ 20 + 40

⇒ 60cm

What will be the area of the largest square that can be cut out of a circle of radius 10 cm?

What is the radius of the largest circle that can be cut out of the rectangle measuring 10 cm in length and 8 cm in breadth?

The circumference of a circle whose area is 81πr², is

The area of a square is 100 cm². The circumference (in cm) of the largest circle cut of it is