Question

Q-20 Find the circumference and area of circle which radius is 7cm


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Answer 1

Answer:

Circumference of circle= 2πr

= 2× 22/7× 7

=2× 22

=44cm

Area of circle= πr²

=22/7 × 7×7

= 154cm²

Answer 2

Answer:

circumference of circle =44cm

area of circle=154cm²

Step-by-step explanation:

circumference of circle = 2πr

area of circle = πr²

if radius = 7 then,

circumference of circle =

$2 \times \frac{22}{7} \times 7$

7 and 7 cancels out so it is

$44$

area of circle

$\frac{22}{7} \times {7}^{2}$

$22 \times 7$

$154$

i hope it helps if it does please mark brainliest