Use the Triangle Angle Sum Theorem to find the third angle of a triangle if the other two angles measure 25°

Question

and 68°
. (1 point)
Responses

86°
86 degrees

87°
87 degrees

77°
77 degrees

88°

Answer 1

The Triangle Angle Sum Theorem states that the sum of the angles in a triangle is always 180°.

Given the two angles:

• First angle = 25°
• Second angle = 68°

Add these two angles together:

25° + 68° = 93°

Now, subtract this sum from 180° to find the third angle:

180° - 93° = 87°

Therefore, the measure of the third angle is 87°.