The formula for the circumference c of a circle with radius r is c = 2πr. which of the following is a formula for π (pi) of the circle in terms of the circumference and radius?

a. pi=c+2r
b: c-2r
c: pi=2r/c
d: pi/c/2r

∠aed is formed inside a circle by two intersecting chords. if minor arc bd = 70 and minor arc ac = 180, what is the measure of ∠ aed? a) 45° b) 50° c) 55° d) 60°

15 there is a line that includes the point 0,10 and has a slope of 7/4. what is it’s equation in slope intercept form

You're locked out of your house. the only open window is on the second floor, 25 feet above the ground. there are bushes along the edge of the house, so you will need to place the ladder 10 feet from the house. what length ladder do you need to reach the window?