Question

In a circle whose radius is $5cm$, a central angle intercepts an arc of $15cm$. What is the radian measure of that angle?

• A. $1$
• B. $2$
• C. $3$
• D. $4$

Answer 1

The correct option is C $3$

Radian measure of an angle, $\theta =\frac{s}{r}$
$\therefore \theta =\frac{15}{5}=3$
Therefore, the value of angle is $3$.