Find the area of a sector with a central angle of 216 degrees and a radius of 18.4 millimeters and round to the nearest tenth. Help please!

Question

anonymous · Answer

do u know formula $$A=\frac{ 1 }{ 2 } r ^{2} \theta $$

anonymous · Answer

No. I missed a day of class and that was the only day my teacher went over that and I have an assignment on it. :(

anonymous · Answer

dont use the formula i gave u its in radians

anonymous · Answer

Oh okay.

anonymous · Answer

area =$$\pi r ^{2} (\frac{ c }{ 360 })$$

anonymous · Answer

c is the central angle in ur case its 216

anonymous · Answer

$$\pi 18.4^{2} \times \frac{ 216 }{ 360 } =638.1705653 mm ^{2}$$

anonymous · Answer

got it?

anonymous · Answer

So that's the formula I should use?

anonymous · Answer

yes

anonymous · Answer

Awesome, thank you so much!

anonymous · Answer

$$area= \pi r ^{2}\times \frac{ c }{ 360 }$$

anonymous · Answer

no worries :)