The area of a circle is 72cm^2. Find the area of a sector of this circle that subtends a central angle of pi/6 rad.
Thanks!
Hello Chinnie15The whole circle ($\displaystyle 72\,cm^2$) subtends an angle of $\displaystyle 2\pi$ at the centre. The sector you want subtends an angle of $\displaystyle \frac{\pi}{6}$ which is $\displaystyle \frac{1}{12}$ of $\displaystyle 2\pi$. So its area is ...?
Grandad