Question

find the area of a circle

Circumference=110 cm.​

Answer 1

Answer:

The circumference of a circle =110cm

⇒ 2πr=110

⇒ 2×

7

22

×r=110

⇒ r=110×

22

7

×

2

1

⇒ r=

2

35

⇒ r=17.5cm

⇒ Diameter of circle (d)=2r=2×17.5cm=35cm

Answer 2

Answer:

962.5 cm^2

Step-by-step explanation:

Circumference of circle=2πr=110

2πr=110

πr=55

r=55/π

r^2=[55/π]^2. -----(1)

Area of circle=πr^2

=π(55/π)^2. {from (1)}

=(55)^2/π

=3025/π

=3025×7/22

=962.5