Question

Geometry help

Answer 1

hint : it's an isosceles triangle (i.e. 2 sides are the same length making 2 angles the same.

Answer 2

Well, the lenght of tha arc AB is the same as tha angle BOC.

Then by the property of inscribed angles in a circle, the measure of ABC is the half of the lenght of BC, and BC is 57°

So the angle BAC is 57/2.

Answer 3

28.5