Question

What if you quadruple the radius of a circle. What happens to the circumference? Explain using examples.

Answer 1

Explanation:

Let's check

• Let radius be x

Circumference:-

➜2πr

➜2πx

• New radius=3x

New Circumference:-

➜2πr

➜2π3x

➜6πx

Taking ratio:-

➜2πx/6πx

➜1/3

➜1:3

Thus,

If we quadruple the radius Circumference will also be quadrupled.