Question

3. Find the circumference and area of a circle of radius 20 cm. (use r =3.14)​

Answer 1

Circumference of circle = 2πr

$= 2 \times 3.14 \times 20$

$= 125.6 \: cm$

Area of a circle

$= \pi \: {r}^{2}$

$= 3.14 \times 20 \times 20$

$= 1256 \: {cm}^{2}$

Answer 2

Step-by-step explanation:

125.6cm and 1256cm2

due to area of circle being pier2 and circumference being 2pier