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In a triangle PQR, if $\angle P+\angle R=150°$ and $\angle P+3 \angle Q=170°$, then $\angle P$ is equal to: |
70° 80° 75° 65° |
80° |
P+R = 150 We know, P+Q+R = 180 Q = 30 Given, P+3Q = 170 P + 3×30 = 170 P = 80 The correct answer is Option (2) → 80° |
