Question

3. A circle has area 314cm?, its radius is ....
(a) 31.4 cm (b) 10cm (c) 20cm (d) 100cm​

Answer 1

Answer:

b) 10cm

Step-by-step explanation:

Area =πr

2

⇒3.14×r

2

=314

⇒r

2

=

3.14

314

×100

⇒r

2

=100

⇒r=10cm.

Answer 2

$\huge \pink {10\:cm}$