2. Find the circumference and area of a circle of diameter
(a) 49 m
(b) 60 cm
Answers
Answer:
22
Step-by-step explanation:
circumference of circle pie r ka sq
22/7*7 = 22
circumference of circle pie r ka sq
22/7*30
Answer:
(a) Radius=49/2
- Circumference of circle=2πr
=2×(22/7)×(49/2)
=154
2. Area of circle=π(r)^2
=(22/7)×(49/2)^2
=(22/7)×(49/2)×(49/2)
=(11)×(7)×(49/2)
=1886.5
(b) Radius=30
1. Circumference of circle=2πr
=2(22/7)×30
=(132/7)
=18.85
2. Area of circle=πr^2
=(22/7)×30×30
=19800/7
=2828.57