Question

1. Find the circumference of a circle whose radius is (iii) 3.5 m (1) 28 cm (1i) 10.5 cm 2. Find the circumference of a circle whose diameter is ( ii) 35 cm (1) 14 cm (iii) 10.5 m​

Answer 1

Circumference of a circle = 2πr ( r = radius )

( π = 22/7 )

1. 3.5 m = 22m

2. 28 cm = 176 cm

3. 10.5 cm = 66 cm

diameter/2 = radius

1.35 cm = 110 cm

2) 14 cm = 44 cm

3) 10.5 cm = 33 cm