Question

The diameter of a circle of circumference 22 cm is _____​

Answer 1

Answer:

As we can see the circumference of the circle is 22 cm

Circumference of a circle is given by 2πr.

Where r is the radius of the circle

Therefore 2πr is equal to 22….

Or radius 'r' is equal to 11/π

Now considering π is equal to 22/7…..

Then r is equal to 7/2

Now diameter is 2 times the radius…so the diameter is 7 cm…

Thank you

Explanation:

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Answer 2

Answer:

The formula of circumference =

circumference of a circle = 2 x pi x r

Pi = 22/7    or, 3.14

r = radius

Given = Diameter = 22 cm

Now, in the formula, radius is used.

Radius = Diameter/2

Radius = 22/2

Radius = 11

It would be easier to use pi=3.14

Now, inserting the values,

Circumference = 2 x 3.14 x 11

Therefore, circumference = 69.08 cm

Explanation:

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