Question

in triangle pqr PQ is equal to PR and angle Q is equal to 80 degree find angle p​

Answer 1

Answer:

PQ = PR   ...   (Given)

∴ ∠Q = ∠R    ...    (Angles opposite to equal sides are equal)

∴ ∠R = 80°

∠P + ∠Q +∠R = 180°    ...    (Angle sum property of a triangle)

∴ ∠P + 80 +80 = 180°

∴ ∠P + 160 = 180

∴ ∠P = 20°