babydogdog6784 babydogdog6784 30-01-2024 Mathematics contestada In a triangle PQR, N is a point on PR such that QN is perpendicular to PR. If P and R = Q and square, prove that: a) ∠P = ∠Q b) ∠P = ∠R c) ∠Q = ∠R d) ∠P + ∠Q + ∠R = 180°