Question

Circumference of a circle whose radius is 7cm

Answer 1

$r = 7 \: cm \\ \\ c = 2\pi \: r \\ \\ = 2 \times \frac{22}{7} \times 7 \\ \\ = 44 \: cm$

Answer 2

Answer:

44 cm

Step-by-step explanation:

Given: Radius of the circle is 7 cm.

Find: Circumference of the circle

Solution: Circumference of the circle=

$2\pi \: r$

=

$2 \times 22 \div 7 \times 7$

=

$2 \times 22 \:$

= 44 cm