can anyone show me how to find the sector of a circle

Question

directrix · Answer

If you post a problem here, I will. I assume you are talking about the area of a sector.

anonymous · Answer

The area of a circle is given by

pi*r^2

Assuming you are given the angle for the sector, and knowing that there are 360 degrees in a complete rotation, the area of a sector would then be given by the fraction of this, namely;

(angle/360)*pi*r^2

(where r is the radius of the circle)

amistre64 · Answer

its the pie shaped piece

amistre64 · Answer

usually shaded

amistre64 · Answer

whats the top arc area of it called?

amistre64 · Answer

|dw:1331083785183:dw|

anonymous · Answer

yess that part

anonymous · Answer

for example a radius of 10 and 90 degree agle

amistre64 · Answer

http://www.mathsisfun.com/geometry/circle-sector-segment.html

anonymous · Answer

Aaah...


In that case, find the area of the sector like I outlined above, then subtract the area of the triangle omitted in the picture drawn.

anonymous · Answer

|dw:1331083884550:dw|