The measure of angle 4 is (a + b) degrees option (C) a + b is correct.
What is the triangle?
In terms of geometry, the triangle is a three-sided polygon with three edges and three vertices. The triangle's interior angles add up to 180°.
It is given that:
A triangle is shown in the picture with angles
As we know the sum of the two interior angles is equal to the exterior angle.
Angle 2 = a degrees
Angle 3 = b degrees
Angle 2 + Angle 3 = Angle 4
a + b = Angle 4
Or
Angle 4 = a + b
Thus, the measure of angle 4 is (a + b) degrees option (C) a + b is correct.
Learn more about the triangle here:
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