if ∆PQR angle P + angle Q =135° and angle Q - angle R =20°. then angle P=?
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Answer:
angle P = 70 degree
Step-by-step explanation:
angle P + angle R + angle Q = 180 degree
135 degree + angle R = 180 degree
angle R = 45 degree
angle Q - angle R = 20 degree
angle Q = 20 + 45 = 65 degree
so angle P = 135 degree- angle Q
= 135 - 65 = 70 degree
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