Question

The ratio of the radii of two hual-hoops is $3:4$. What is the ratio of their circumferences?

• A. $4:3$
• B. $1:4$
• C. $2:1$
• D. $3:4$

Answer 1

The correct option is D $3:4$

We know that Circumference $\propto$ Radius

$\therefore$ Ratio of Circumferences $=$ Ratio of Radii $=3:4$