Answer: x = 23
Step-by-step Step-by-step explanation:
The sum of any triangle's angles will add up to 180°. Since we already have a known angle, 65°, we can subtract that from 180°.
180° - 65° = 115°
Now we add the unknown angles (x) together:
4x + x = 5x
Lastly, we divide 115 by 5 to find x.
115/5 = 23
x = 23