Question

Find the circumference and the area of the circles having radius taken=
7
a. 14 dm
b. 2.1 m
. 4.9 cm
22​

Answer 1

Answer:

options a

Step-by-step explanation:

I hope it help you.

Answer 2

Step-by-step explanation:

Area of circle

$= \pi \: r {}^{2} \\ = \frac{22}{7} \times 7 \times 7 \\ = 22 \times 7 \\ = 154$

circumference of circle

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

Hope ,it helpful for you