Solve for r: c = 2pi(r). r = c over 2 pi r = 2 c all over pi r = c over pi r = pi times c all over 2
a)r = c over 2 pi
b)r = 2 c all over pi
c)r = c over pi
d)r = pi times c all over 2

40 points. given: two congruent angles ∠c and ∠r are supplementary. prove: ∠r and ∠c are both right angles. it doesn't have to be exactly 10 rows.statements reasons1. 1. 2. 2. 3. 3. 4. 4. 5. 5. 6. 6. 7. 7. 8. 8. 9. 9. 10. 10.