Dec 13, 2018 Thread starter #1 E Etrujillo New member Dec 12, 2018 9 So far i have. 12) area of full circle is πr² area of sector is (120/360)(πr²) or 12π 13) same area is (270/360)(πr²) Am i correct?

So far i have. 12) area of full circle is πr² area of sector is (120/360)(πr²) or 12π 13) same area is (270/360)(πr²) Am i correct?

Dec 13, 2018 #2 skeeter Well-known member MHB Math Helper Mar 1, 2012 644 #12 is correct ... finish #13

Dec 13, 2018 Thread starter #3 E Etrujillo New member Dec 12, 2018 9 Im assuming 12m is the radius so \frac{270}{360}pi×12squared=108 pi Am i correct?

Dec 13, 2018 Admin #4 M MarkFL Administrator Staff member Feb 24, 2012 13,736 \(\displaystyle A=\frac{1}{2}r^2\theta=\frac{1}{2}(12\text{ m})^2\frac{3\pi}{2}=108\pi\text{ m}^2\quad\checkmark\)

\(\displaystyle A=\frac{1}{2}r^2\theta=\frac{1}{2}(12\text{ m})^2\frac{3\pi}{2}=108\pi\text{ m}^2\quad\checkmark\)