Question

find the values of X and Y

Answer 1

Hey friend here is your answer

In this two sides are same as given

Therefore that two angles are same.

Let the angle be x

x + x + 70 = 180 angle sum property of triangle.

2x = 180 - 70

2x = 110

x = 110 ÷ 2

x = 55

Therefore two angles are 55 and 55

Hope it helps you.

Answer 2

In this figure its shown that its an issocles triangle
=its two sides are eqal
There us a teorm that tells us that angles opposite to equal sides are equal
=>x=y.. Equation 1

According to angle sum property of a triangle x+y+70=180
Substituting equation 1 we get
x+x+70=180
2x=180-70
2x=110
x=110/2
x=55°

We get x=y
=>x=55°
y=55°