Question

If in triangle ABC, angle A = 70 degrees and angle B = 60 degrees, then find angle ACD.

Answer 1

In triangle ABC, angle A = 70 degrees and angle B = 60 degrees. Angle ACD can be found by subtracting angles A and B from 180 degrees.

Step-by-step explanation:

In triangle ABC, we are given that angle A = 70 degrees and angle B = 60 degrees. To find angle ACD, we need to use the fact that the sum of angles in a triangle is always 180 degrees. First, we find angle C by subtracting angles A and B from 180: C = 180 - 70 - 60 = 50 degrees. Since angle ACD is an exterior angle of triangle ABC, it is equal to the sum of the remote interior angles. Therefore, angle ACD = angle A + angle B = 70 + 60 = 130 degrees.

Learn more about Triangle angles