Question

2. Find the circumference and area of a circle of diameter
(a) 49 m
(b) 60 cm​

Answer 1

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 2

Answer:

(a) Radius=49/2

1. 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