Question

lines and angles pls help​

Answer 1

These are vertical opposite angles

so the angles opposite would be equal and y is opposite to 45 degree and x makes a linear pair with y so x is 180 - y and z is opposite to x so z is x

therefore

y = 45 degree

x = 180 degree - 45 degree = 135 degree

z = x = 135 degree

I hope you will understand