In triangle if 3p=4q=6r , calculate angle of the trianle Share with your friends Share 3 Manbar Singh answered this In ∆PQR, we have 3∠P = 4∠Q = 6∠R⇒∠P = 2∠R and ∠Q = 32∠RNow, ∠P + ∠Q + ∠R = 180° Angle sum property⇒2∠R + 32∠R + ∠R = 180°⇒92∠R = 180°⇒∠R = 40°now, ∠P = 80°∠Q = 32×40° = 60° 2 View Full Answer