The measure of central angle QRS is 8pi/9 radians. What is the area of the shaded sector?

a.) 36 pi units^2
b.)72pi units^2
c.)144pi units^2
d.)324pi units^2

Acircle has a circumference of 2 pi cm. which statement about the circumference and area is true? a comparison of the area and circumference is not possible since the area cannot be determined. the numerical values of the circumference and area of the circle are equal. the numerical value of the circumference is greater than the numerical value of the area. the numerical value of the circumference is less than the numerical value of the area.

Can someone answer this question? : )

Graph y ≥ -x^2 - 1. click on the graph until the correct graph appears.