1.

A circle and a rectangle have the same perimeter. The sides of the rectangle are 18 cm and 34cm. The approximate area of the circle is : 1). 856 cm22). 786 cm23). 556 cm24). 616 cm2

Answer»

PERIMETER of the CIRCLE = Perimeter of the rectangle

Perimeter of the circle = 2 × (length + BREADTH)

Perimeter of the circle = 2 × (18 + 34) = 104 cm

2πr = 104

r = 16.5 cm

Area of the circle = π × r2 = π × 16.52 = 856 cm2

∴ The area of the circle is 856 sq.cm


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