Question

The sides AB and AC of ∆ABC are produced to points E and D respectively. If bisectors BO and
CO of ∠CBE and ∠ BCD respectively meet at point O, then
i) prove that ∠BAC = 180° - 2 ∠BOC
ii) if ∠BOC = 55° find the measure of ∠BAC

Answer 1

Answer:

in first u have given angleBAC=180-2angleBOC

in secondu have angleBOC=55 the answer is anglebac=180-2×55=180-110=70

Answer 2

Answer: the answer is 70.......