<h2><u>Question</u>:-</h2>
The diameter of a circle is 18 m. Find its circumference in terms of π.
<h2><u>Solution</u>:-</h2>
Diameter of a circle = 18 m. (Given)
Radius (r) of a circle = 18/2 = 9 m.
We know,
Circumference of a circle is 2πr.
So, It's circumference is (2 × π × 9) m.
It's circumference is 18π m.
<h3>It's circumference in terms of π is <u>1</u><u>8</u><u>π</u><u> </u><u>m</u>. [Answer]</h3>