Question

find the radius of a circle whase circumfernce is 66m
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Answer 1

Answer:

Let the diameter of a circle be d m

Given circumference of the circle is 66 m

⟹πd=66

⟹  22÷7×d=66

⟹d= 66×7÷22=21m

So the diameter is 21 cm

radius=d÷2

so, 21÷2

∴ radius is 10.5

Answer 2

Answer:

I hope my answer helps to you