If the area of a circle measures 9pi cm2, what is the circumference of the circle in terms of pi

a) 3pi cm
b) 6pi cm
c) 9/4pi cm
d)9/2pi cm

Which of the following is the correct ratio for converting kilograms to grams

Select the correct answer from the drop-down menu. subtracting 3xy^2 from 8xy^2 gives the same result as the expression. [tex]3xy ^{2} - 8xy ^{2} [/tex][tex] { - 7xy}^{2} - {2xy}^{2} [/tex][tex] {7xy}^{2} - {2xy}^{2} [/tex]

Which basic geometric term has no width, no length, and no thickness? line b. point c. angle d. plane