The shaded sector above covers 1/2 of the circle. If the radius of the circle above is 3 cm, what is the area of the sector in terms of ππ. A. 1.125π cm^2 B. 14.13π cm^2 C. 4.5π cm^2 D. 2.25π cm^2

illusiia

illusiia

Answered question

2020-11-08

The shaded sector above covers 12 of the circle. If the radius of the circle above is 3 cm, what is the area of the sector in terms of ππ. A. 1.125πcm2
B. 14.13πcm2
C. 4.5πcm2
D. 2.25πcm2

Answer & Explanation

dieseisB

dieseisB

Skilled2020-11-09Added 85 answers

If the sector covers 12 of the circle, then we need to find the area of the circle and multiply this area by 12.
The area of a circle is πr2 where rr is the radius. If the radius of the circle is r=3 cm, then its area is π(3)2=9πcm2.
The area of the sector is then 129π=4.5πcm2.
The correct answer is then C. 4.5πcm2.

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