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2.In the given figure ,if the exterior angle is 135º, then p isa)67.5° b)75°c)105° d)82.50 |
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Answer» ong>Answer: P = 90° Step-by-step explanation: Given: = 135° PQ = PR >angle PRQ + EXT. angle = 180° ( since it is a STRAIGHT line) PRQ + 135° = 180° PRQ = 180° - 135° = 45° Now, angle Q = angle R = 45° (since PQ = PR) >angle P + angle Q = ext. angle (since ext. angle is equal to the SUM of interior opposite angles) angle P + 45° = 135° angle P = 135° - 45° = 90° |
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