Question

Circle O is shown below. What is the measure of angle BAC?

Answer 1

Answer:

46.5°

Explanation:

Answer 2

Answer:

46.5

Explanation:

Given that AOC is the diameter and AO na d OB are the radii, then ΔAOB is an isosceles triangle. Thus the base angles ∠A=∠B

thus

∠BAC=∠A will be found as follows:

sum of angles in a triangle is 180

thus

180-87=

=93

hence

∠A=∠B=93/2=46.5°

Answer: 46.5°