In △ABC, the sides AB and AC are produced to ∠P and ∠Q respectively. If the bisectors of ∠PBC and ∠QCB intersect at A point O. Prove that ∠BOC = 90 - ½ ∠A.
in △abc, the sides ab and ac are produced to ∠p and ∠q respectively. if the bisectors of ∠pbc and ∠qcb intersect at a point o. prove that ∠boc = 90 - ½ ∠a.
