Question

7. _______________ is the circumference of the circle, if the radius of the circle is 21 ​

Answer 1

Answer:

circumference is 132

Step-by-step explanation:

circumference=2× 22/7×21

=132

Answer 2

 

$\huge \purple{\underline{\underline {\bf{{Answer}}}}}$

Given,

• Radius of the circle = 21 cm

To find,

• Circumference of Circle

Solution,

We know that,

${{ \bf{\sf \: π=22/7}}}$

${ \boxed{ \bf{\sf \: Circumference \: of \: Circle = 2πr}}}$

${ \bf{\sf \: 2 \times \frac{22}{7} \times 21}}$

${ \bf{\sf \:2 \times 22 \times 3}}$

$\pink{ \boxed{ \bf{\sf132 \: cm}}}$

∴ The circumference of circle = 137 cm