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## anonymous 5 years ago how do u find the area of a sector?

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1. anonymous

What shape is the sector? triangular. rectangular. square? cube?

2. anonymous

it is a circle with like 1/4 shaded wiht one side says 2 and is a90 degrree angel

3. anonymous

the formula for the are of a circle is $A={\Pi}r^2$

4. anonymous

you find the proportion of the total area by finding the angle ratio. Let a be the angle of the shaded area. Then the fraction of the total area that is shaded is a/360. So the area of the shaded region is $(a/360)*\pi r^{2}$ in your case a=90 90/360=1/4 r=2 ( i think this is what you mean by a side saying 2) $A=(1/4)\pi 2^{2}=\pi$

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