If it took Rachel and David 10 minutes to play a game of checkers, and they started playing at 2:25 P. M., at what time did they finish playing the game?

the square root of what number? if you add that, then someone will probably answer the question.

6950 is the

place r′ so that qr′ is parallel to the tangent.

now we get that ∠r′py=∠pr′q, where y is on the tangent, on the opposite side of p from x.

also, because of the symmetry, ∠r′py=∠qpx.

finally, note that no matter where we place r, as long as it's on the correct arc, we have ∠prq=∠pr′q.

stringing all these equalities together, we end up with ∠prq=∠qpx.

this picture will show how its going to look like.

hope this by jack monhen