Answer:
133º
Step-by-step explanation:
Given that,
The measure of angle 1 = (4x + 8)º
The measure of angle 2 = (2x +17)°
The measure of angle 3 = (7x + 7)º
We need to find the measure of angle 3. We know that, the sum of interior angle is equal to the exterior angle.
[tex]\angle 1+\angle 2=\angle 3[/tex]
Put all the values,
(4x + 8)+(2x +17) = (7x + 7)
x = 18
Angle 3 = (7(18) + 7)º
= 133º
So, the measure of angle 3 is equal to 133º.
