If XW ∥ YZ and ∠XWZ≅∠ZYX, what theorem can be used to show that △XWZ≅ △ZYX?

i think it is 70

step-by-step explanation:

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step-by-step explanation:

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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.

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hope this by jack monhen

the answer is  

d.

21

i did this one. so you should get it right.