A window is designed as shown below. Find the value of x.

Answer:
x = 18
Step-by-step explanation:
x° + 8x° + x° = 180° (Linear pair angles)
10x° = 180°
x° = 180°/10
x° = 18°
x = 18
Answer:
x = 18°
Step-by-step explanation:
Angles on a triangle add up to 180°
x + 8x + x = 180°
10x = 180°
x = 180° ÷ 10
x = 18°