Question

The diameter of a circle is 18m . Find its circumference in terms of pi?

Answer 1

Question:-

The diameter of a circle is 18 m. Find its circumference in terms of π.

Solution:-

Diameter of a circle = 18 m. (Given)

Radius (r) of a circle = 18/2 = 9 m.

We know,

`\dag` Circumference of a circle is 2πr.

So, It's circumference is (2 × π × 9) m.

It's circumference is 18π m.

It's circumference in terms of π is 18π m. [Answer]

Answer 2

The circumference of a circle =πd = π×18 =18π m