Question

circumference = 308 , radious = ? ,area= ?​

Answer 1

Answer:

circumference = 308

2 π r = 308

2 x 22/7 x r = 308

r = 49cm

radius = 49cm

area = π r²

= 22/7 x 49 x 49

= 7546cm²

Answer 2

Answer:

Circumference of circle = 2πr

308 cm = 2πr

308 / 2 cm= πr

154 cm = 22r / 7 [ π = 22 / 7 ]

154 × 7 / 22 cm = r

7 × 7 cm = r

49 cm = r or radius

Then,

Area of circular sheet = πr²

Area of circular sheet = 22 / 7 × 49 × 49 cm²

Area of circular sheet = 22 × 7 × 49 cm²

Area of circular sheet = 7546 cm²

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