Find the diameter of a circle whose area is 62 8 cm²
Answers
Answered by
1
Let the diameter be d
As we know that
Circumference of the circle with diameter d is πd
Given circumference is 62.8 cm
⟹πd=62.8
⟹d= 62.8/3.14=20 cm
So diameter of the circle is 20 cm
Answered by
2
Answer:
Area = π r2 = 628
Therefore
3.14 x r2 = 628
314/100 x r2= 628
r2 = 628 x 100/314
r2 = 2 x 100
r2 = 200
r = √200
r= 10√2
Diameter = 2r = 2 x 10√2 = 20√2 cm
Hope you like it please mark brainlist.
Similar questions