Answer:
Explanation:
To find the value of x, we can set up an equation based on the given angle measures:
m∠AOB = (8x - 5)°
m∠BOC = (5x + 15)°
m∠COD = (5x + 10)°
Since the sum of the angles in a triangle is 180°, we can set up the equation:
m∠AOB + m∠BOC + m∠COD = 180°
Substituting the angle measures:
(8x - 5) + (5x + 15) + (5x + 10) = 180
Simplifying the equation:
8x - 5 + 5x + 15 + 5x + 10 = 180
18x + 20 = 180
Subtracting 20 from both sides:
18x = 160
Dividing both sides by 18:
x = 160/18
x ≈ 8.89
So, the value of x is approximately 8.89.