Answer: ACD measures 50 degrees
Step-by-step explanation:
Since overline CD is the bisector of m angle ACB, it divides the angle into two equal angles: m angle ACD and m angle BCD.
Let's represent the measure of m angle ACD as x.
We know that m angle A = 58 and m angle B = 72. Since overline CD is the bisector, it divides angle ACB into two equal angles: m angle ACD and m angle BCD.
So, m angle ACD = m angle BCD = x.
Since the sum of the angles in a triangle is 180 degrees, we can set up an equation:
m angle A + m angle C + m angle B = 180
58 + x + 72 = 180
Now, solve for x:
x = 180 - 58 - 72
x = 50 degrees
So, m angle ACD measures 50 degrees.