Question

in the given figure find x y or Z (whichever is a required)​

Answer 1

Answer:

Given the lines are equal

also we know

sum of all interior angles of a triangle are supplementary

Let the other angle be y

that is

x+y+80=180

x=y(if two opposite sides of a triangle are equal then their opposite angles are also equal)

Let them be x,as they are equal

x+x+80=180

2x=180-80=100

x=100/2

x=50°

therefore the angles are

80°

x=50°

y=50° (opposite angle of x)

Answer 2

Answer:

x=50°

If in a triangle two sides are equal then it is isosceles traingle

In isosceles traingle of two sides are equal ,then their corresponding angles will be equal

therefore ,by angle sum property of traingle ,x=50°