To find the measure of angle a using the Triangle Sum Theorem, we need to add up the measures of all the angles in the triangle, which should equal 180 degrees.
So, 72° + 38° + 70° + a = 180°
Simplifying, we get:
180° = 180°
Therefore, angle a = 180° - (72° + 38° + 70°) = 180° - 180° = 0°
Therefore, the measure of angle a is 0°.
Use the Triangle Sum Theorem to find the measure of angle a. *
2 points
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180°
72°
38°
70°
1 answer
1 answer