Answer:
X=30°
Step-by-step explanation:
Angles around a point add up to 360.
One angle is given as a right angle which is 90°
So your equation would be:
90°+5X+4X=360°
90°+9X=360°
9X=360°-90°
9X=270° (Divide both sides by 9)
Hope that helps!
