Question

find the circumference of a circle is radius 42cm​

Answer 1

Answer:

Circumference of a circle of radius r =2πr

Circumference of circle of radius 42cm=2π×(42cm)

⇒2×722×42

⇒264 cm

Answer 2

radius of circle = 42cm..

circumference = 2πr

= 2× 22/7 × 42 cm

=264cm