In the given figure, angle BCD = 145 degrees and angle ABC = 70 degrees. What is the value (in degrees) of angle BAC?
Show answer & explanation
Correct answer: D
Explanation
Given:
∠BCD = 145°, ∠ABC = 70°
According to the formula:
Exterior angle = Sum of the interior opposite angles
∠BCD = ∠BAC + ∠ABC
145 = ∠BAC + 70
∠BAC = 145 − 70 = 75°