1.

Find the angles of a triangle PQR if P-Q=45° and Q-R=30°​

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ANSWER:

Step-by-step explanation:

If P - Q = 45. Therefore, P = Q + 45. Also, Q - R = 30, therefore R = Q - 30. In TRIANGLE PQR P+Q+R = 180 i.e. Q+45+Q+Q-30=180 i.e. 3Q + 15 = 180 i.e. 3Q = 165 i.e. Q = 55 Therefore P = 55 + 45 = 100 Q = 55 and R = 55 - 30 = 25


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