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Answer:
Angle PTR and angle PTS are supplementary angles. Lines PQ and RS intersect at an angle less than a right angle. Angle PTR and angle PTS are complementary angles.
Step-by-step explanation:
Answer: 72
Step-by-step explanation:
Answer:
three
Step-by-step explanation:
1) solving for roots
2) Quadratic formula
3) By completing square