Question

find the circumference of a circle whose area is 1256 cm² G= 3.14)
3.14)​

Answer 1

Answer:

circumference of circle= 2πr

1256= 2*3.14*r

r= 1256/2*3.14

r= 1256/6.28

r=200cm

Answer 2

Question ::-

find the circumference of a circle whose area is 1256 cm² .( Taking π = 3.14 )

Given ::-

• Area of circle = 1256 cm²

• Value of π = 3.14

To find ::-

• Find the circumference of circle ?

Solution ::-

Area of circle = 1256 cm²

________

• Area = $πr²$

• 1256 = $3.14 × r²$

• 1256/3.14 = $r²$

• 400 = $r²$

• $\sqrt{400}$ = r

• 20 = r

Hence , radius is 20 cm.

_________

• Circumference of circle = $2πr$

• Circumference = 2×3.14×20

• Circumference = 40 × 3.14

• C = 125.6

Hence , circumference of circle is 125.6 cm