Question

Find the values of the unknowns x and y in the following diagrams​

Answer 1

Therefore , y = 15°

x = 60°

Answer 2

Step-by-step explanation:

7y+5y = 180°

12y=180°

y= 15

Hence, 7y=105°

5y=75°

3y=45°

Sum of all angles if triangle is 180°

Hence,

3y+5y+x=180°

we have found the values of 3y and 5y above

substituting them we get,

75+45+x= 180

therefore, x=180-120

x=60°