Question

∆XYZ Angle X=30° Angle Y=110° Z= x find the value of Z

Answer 1

Sum of all three angle of a triangle is 180.
So, X + Y + Z = 180
30 + 110 + x = 180
140 + x = 180
So, x = 180 - 140 = 40...

Answer 2

(Angle x) + (Angle y) + ( Angle z)

Angle sum property

30+110+z= 180

140+z=180

z=180-140

z=40

Therefore Z is equal to 40 degree