Calculate the value of X.
We have hundreds of course questions with personalized recommendations + Account 100% premium
Calculate the value of X.
Let's remember that the sum of angles in a triangle is equal to 180.
Therefore, we will use the following formula:
We'll substitute the known data:
We'll combine similar terms:
We'll move terms to one side and maintain the appropriate sign:
We'll divide both sides by 9:
5
Is the straight line in the figure the height of the triangle?
Get unlimited access to all 18 Angles questions, detailed video solutions, and personalized progress tracking.
Unlimited Video Solutions
Step-by-step explanations for every problem
Progress Analytics
Track your mastery across all topics
Ad-Free Learning
Focus on math without distractions
No credit card required • Cancel anytime