Question

in the given figure, AB and AC are two tangent to the circle with centre o such that angle BOC = 110°. Find the measure of angle BAC

Answer 1

Answer:

angle BAC =70

Step-by-step explanation:

angle BOC =110

therefore

opposite angles. of the given figure is supplementary

so angleBAC =70

Answer 2

Tangent is perpendicular to radius at point of contact.

So, ∠ABO=∠ACO=90

∘

In a quadrilateral, the sum of the angles is 360

∠BAC+∠BOC+∠ABO+∠ACO=360

∠BAC+∠BOC=180

∠BAC=180 - 40

∠BAC=140

So, option C is the answer