Q. 295.0( 1 Vote )

In Δ PQR, if P = 60°, and Q = 40°, then the exterior angle formed by producing QR is equal to
A. 60°

B. 120°

C. 100°

D. 80°

Answer :

Exterior angle is sum of opposite interior angles


When QR is produced means exterior angle of R


Having opposite angles P and Q


exterior angle = P + Q


= 60° + 40° = 100°

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