Question

the circumference of a circle is 430cm calculate the diameter of a circle​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Given,

The circumference of a circle is 430 cm.

To find,

The diameter of the circle

Solution,

The formula for the circumference of a circle is represented as 2πr.

⇒  2πr = 430

⇒  r = 430/2π

⇒  r = 215/π

We know that radius of the circle is half the diameter since the radius of the circle is 215/π its diameter would be 2(215/π).

⇒  Diameter = 2(Radius)

⇒  Diameter = 2(215/π).

⇒  Diameter = 430/π

Putting the value of π= 3.14 we get,

⇒  430/3.14

⇒  136.94 cm.

Hence, the diameter of the circle is 136.94cm.