Recall that in a 45 – 45 – 90 triangle, if the legs each measure x units, then the hypotenuse measures x units.

5

10

15

20

25

30

35

40

45

50

55

your answer is -9

step-by-step explanation:

there were only 2 presidents that were under the age of 45. theodore roosevelt, and jfk, that makes 5%

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