Find the area of the shaded sector. Leave your answer in terms of π.
24π ft2
18π ft2
32π ft2
3π ft2
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Answer:
18π ft^2
Step-by-step explanation:
The area of the circle is
pi *r^2
pi * 12^2
144pi
The part that is shaded is 45 degrees
An entire circle is 360 degrees
The fraction that is shaded is 45/360 = 1/8
Multiply the area by the fraction that is shaded
1/8 * 144 pi
18 pi
Answer:
18π ft2
Step-by-step explanation:
The circle has a radius of 12 ft and the angle of the sector is 45°.
Area of the sector (A) is given by the formula below:
[tex]A=\frac{\theta}{360}* \pi r^2[/tex]
Where [tex]\theta[/tex] is the angle of the sector and r is the radius of the circle
We know r = 12 and [tex]\theta[/tex] = 45°
Plugging these into the formula and simplifying, we get:
[tex]A=\frac{\theta}{360}* \pi r^2\\A=\frac{45}{360}* \pi (12)^2\\A=\frac{1}{8}* \pi (144)\\A=18 \pi[/tex]
Thus, the area is [tex]18 \pi[/tex] sq. ft.