( need help on geometry w/pic )

17. Find the measure of the size of an equilateral △PQR if PQ = 5x - 7 and PR = 2x + 5.

18. In △ABC, what is the angle opposite AB ?

need help on geometry wpic 17 Find the measure of the size of an equilateral PQR if PQ 5x 7 and PR 2x 5 18 In ABC what is the angle opposite AB class=

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Answer:

In the attached file

Triangle of question 18 isn't visible

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