If (r=12) cm and arc (s=6\pi) cm then what is the angle ( \theta )?
Answer and explanation
Correct answer: ( \frac{\pi}{2} ) radians
( \theta=\frac{s}{r}=\frac{6\pi}{12}=\frac{\pi}{2} ) radians. Rearrange (s=r\theta) as ( \theta=\frac{s}{r} ).
Frequently asked questions
What is the correct answer to this question?
( \frac{\pi}{2} ) radians
Why is this the correct answer?
( \theta=\frac{s}{r}=\frac{6\pi}{12}=\frac{\pi}{2} ) radians. Rearrange (s=r\theta) as ( \theta=\frac{s}{r} ).
Which subject and chapter does this question cover?
This is a Class 12 Mathematics question. Chapter: Trigonometric Functions. Topic: Angles.