Answer:
The value of x is 3
The value of y is 5
Explanation:
Given triangle STU is Equilateral triangle.
Angle S = 25y-15
Angle U = 20x
Since, Triangle STU is Equilateral triangle.
Angle S =Angle T =Angle U = 60
For value of x:
Angle U = 20x and Angle U = 60
We can write as
20x=60
x=3
For value of y:
Angle S = 25y-15 and Angle S = 60
We can write as
25y-15=60
25y=60+15
25y=75
y=5