how do u find the area of a sector?

Question

anonymous · Answer

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

anonymous · Answer

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

anonymous · Answer

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

anonymous · Answer

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)
$$A=(1/4)\pi 2^{2}=\pi$$