Answer: Y=70 X= 20 You do first the adjacent angles 180-40 so 140 then u have that the triangle is isosceles so the bas angles are equal 180 -140 = 40 40 divided by 2 20 and 20 so x= 20 Then 90 -20 is 70 So 180 - (70+40) 180-110=70 so y= 70 Hope you understand
