Respuesta :

Rutun
It is an isosceles triangle so the angle on the opposite side of 72 will be same so x =72.

Then add 72+72 which equals 144.
A triangle equals to 180 degrees so you take 144 away from 180 so y= 36.

wegnerkolmp2741o

x=72 since it is an isosceles triangle (AC=BC)

ABC = 180

<a +<B +<c =180

y +72+72 = 180

y + 144 = 180

subtract 144 from each side

36 = y

Answer : x=72    y =36