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If RT is a diameter of Q, find m

If RT is a diameter of Q, find m-example-1

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Explanation:

If RT is a diameter of the circle Q, the measures of angles on either side of RQT are equal to 180°.

9 x+ 2+ 7 x + 18 = 180°

x = 10°.

m(∠PQT) = 180° - 65° = 115°.

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