Question

EXERCISE 11.3
Find the circumference
(a) 14 cm
(b) 28 mm
(c) 21 cm
Find the area of the following circles, given that:
a) radius = 14 mm
(b) radius= 5 cm
(c) diameter = 49 m​

Answer 1

Step-by-step explanation:

I didn't get your first question but tried to answer second one

Answer 2

We know that Circumference of circle=2πr

⇒ Radius =28 ( Given)

⇒ Circumference = 2×22/7×28

⇒ Circumference = 176mm