Download Measures of Angles - Math GR. 6-8

Finding Unknown Measures of Angles
Use the Triangle Sum Conjecture in Euclidean Geometry to determine the missing
measures of angles. Justify your answers and explain your reasoning
1.
2.
3.
4. Find the sum of the
measures of the
marked angles
5. Find the sum of the measures of the marked angles
6.
7.
8.
9. (Short response)
In triangle ABC, the measure of angle A is 2x + 3, the measure of angle B is 4x + 2,
and the measure of angle C is 2x – 1. What are the measures of the angles?
10. (Short response)
The measures of the angles in a triangle are in the ratio 1 : 3 : 5. Find the measure of
each angle.