A 3. In the figure, A, B, C are three points on a circle such that the angles subtended by the chords AB and AC at the centre o are 110° and 120° respectively. Determine ZBAC and the degree measure of ZBOC. 110% 120° С B M
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3. In the figure, A, B, C are three points on a circle such that the angles subtended by the chords AB and AC at the centre o are 110° and 120° respectively. Determine ZBAC and the degree measure of ZBOC. 110% 120° С B M
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Given,
AB =80° subtend 80° and 120 ° at center .
---=> <A0B = 80° and CBC = 120°
now <AOB + < Boc + < Aoc=360°
=> 80+120° +<Aoc=360°
= <AOC = 360°-200°=160°
hence ,A= 60°,B= 80° and c=40° .
hope it's helpful ok .
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