Question

If the area of the circle below is 18 ft2, what is the area of the shaded sector?

A. 9 ft2
B. 6 ft2
C. 4.5 ft2
D. 13.5 ft2

Answer 1

C.4.5 ft^2

Explanation:

If the area of the whole circle is 18 ft^2, and a whole circle is 360 degrees, and you are looking for the area of 90 degrees of that circle (which is one fourth of the circle) you would divide the area by 4, to get the area for that sector.

360/90= 4: meaning that 90 degrees is 1/4 of a circle.

So, you would divide 18 by 4.

18/4=4.5

Hope this helps!

Answer 2

It would be C

Explanation:

since the whole area of the circle is 18 and the sector takes up one-fourth of the circle you would just divide 18 by 4 to get 4.5