The measure of m<CDG is 118 degrees
To determine the measure of the angle, we need to take note of the following;
- Angles on a straight line is equal to 180 degrees
- Supplementary angles sum up to 180 degrees
- Complementary angles sum up to 90 degrees
- Angle at right angle is 90 degrees
- Alternating angles are equal
From the diagram shown, we have that;
m<HGD = 118 degrees
But we can see that m<HGD and m<CDG are alternating.
Then, m<CDG is 118 degrees