Question

Find the circumfrence of a circle whose diameter is: [a] 10cm [b] 7.7cm

Answer 1

Answer:

the answer for the above question is a 7 cm b. 3.5

Answer 2

a)

radius=10cm

therefore, circumference of circle=2πr

=2×22/7×10

=62.857cm

b)

radius=7.7cm

therefore, circumference of circle=2πr

=2×22/7×7.7

=48.4cm

It may be useful!