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HELPPPPPP plsssssssssss
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HELPPPPPP plsssssssssss

HELPPPPPP plsssssssssss-example-1
User AdrianEddy
by
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1 Answer

0 votes

Answer:

270°

Explanation:

∠ PQR = 90° ( angle in a semicircle )

PRST is a cyclic quadrilateral

The opposite angles in a cyclic quadrilateral are supplementary, sum to 180°

Then

∠ PRS + ∠ PTS = 180°

∠ PQR + ∠ PRS + ∠ PTS = 90° + 180° = 270°

User JayneT
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