1.

If the circumference of circle is 13.2 cm, find the radius of the circle.1. 1.4 cm2. 2.1 cm3. 3.4 cm4. 5.1 cm

Answer» Correct Answer - Option 2 : 2.1 cm

Given:

Circumference of the circle = 13.2 cm

Formula used:

Circumference of circle = 2πr

Where r represents radius of the circle

Calculation:

13.2 = 2(π) r

⇒ r = (13.2 × 7)/ (2 × 22)

⇒ r = 2.1 cm

∴ The radius of circle is 2.1 cm


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