Question

A circle has a radius of 8 inches. Find the area of a sector of the circle if the sector has an arc that measures 45°.

a)2 sq. in.
b)8 sq. in.
c)16 sq. in.

Answer 1

You can find the area of any sector in a circle, by having the angle and the radius and use the followinf formula:
\[A _{s \circ }=(\frac{ \alpha }{ 360 })(\pi r^2)\]
Where alpha is the angle and "r" is the radius.

Answer 2

...???

Answer 3

just replace the values in the formula:
\[A=(\frac{ 45 }{ 360 })(\pi (8)^2 )\]

Answer 4

oh ok....sorry ive never done this befor...and thanks