A circle has a circumference of 615.44615.44615, point, 44 units. What is the radius of the circle?

Ateacher brought a pack of 17 batteries . each calculator uses 3 batteries . how many calculator can the teacher fill with batteries

Find the area of the region that is inside r=3cos(theta) and outside r=2-cos(theta). sketch the curves.

(10. in the figure, a aabc is drawn tocircumscribe a circle of radius 3 cm ,such thatthe segments bd and dc are respectively oflength 6 cm and 9 cm. find the length ofsides ab and ac.