Question

The circumference of a circle whose diameter is 20 cm

Answer 1

given - diameter =20cm

radius=10cm

for the question,

circumference=2πr

=2×3.14×10

=62.8cm

Answer 2

Answer:

Step-by-step explanation:

Diameter=20 cm

2r= 20cm

r=10cm

Circumference = 2pi r

= 2*22/7*10

=440/7

=62.8 cm