Question

6. Find the radii of the circle whose area is:
(Take n = 3.14)
a) 530.66 m² b) 706.5 cm² c) 200.96 m²​

Answer 1

Answer:

a) A= 530.66m²

A=πr²

530.66= 3.14 × r²

r²= 530.66/3.14

r²= 53066/314

r²= 169

r=√169

r=13m

b) A= 706.5cm²

A=πr²

706.5=3.14 ×r²

r²= 706.5/3.14

r²= 70650/314

r²=225

r=√225

r=15cm

c)A=200.96m²

A=πr²

200.96=3.14 × r²

r²=200.96/3.14

r²=20096/314

r²=64

r=√64

r=8m

HOPE THIS WILL HELP YOU!

Answer 2

Answer:

 Area of Circle = 200.96 sq cm

= 200.96πr

2

=200.96

3.14 \times = 200.963.14×r

2

=200.96

 2

=

3.14

200.96

 2

=64

 2

=

64

r = 8

Radius = 8 cm

Circumference of Circle = 2πr

= 2 × 3.14 × 8

= 50.24

Radius = 8 cm

Circumference of Circle = 50.24 cm