Question

Taking π = 3.14, find the radius and circumference of a circle whose area is:
(1) 200.96 cm^
(2) 379.94 m^​

Answer 1

Answer:

1) 8 cm

2) 11 m

Step-by-step explanation:

1) Area of circle=  πr^

(200.96)/3.14 = 64

square root of 64= 8

Answer 2

Answer:

(1) πr^2=area of a circle

3.14*r^2=200.96

r^2=200.96/3.14

r^2=20096/314

r^2=64

r=√64

r=8

Circumference of a circle= 2πr

= 2*3.14*8 cm

= 50.24 cm

(2) πr^2=area of a circle

3.14*r^2=379.94

r^2=379.94/3.14

r^2=37994/314

r^2=121

r=√121

r = 11

Circumference of a circle = 2πr

= 2*3.14*11 cm

= 69.08 cm