Question

What is the size of shaded angle from the diagram?

Answer 1

Answer:

20 is right answer ok by

Answer 2

let the shaded part be x

and the angle opposite to 70 will be a

and adjacent angle to a is b

so 70+a=180( angles on the same side of the transversal are supplementary)

=a=110

a+b=180 since these are supplementary angles

===b=70

therefore x=110