Question

if angle xyz, if angle X:angle Z is 5:4 and angle y=72 degree, find angle X and angle Z​

Answer 1

Answer:

Please see the attachment

Answer 2

Angle y=72°

x and z = 5:4

so let x=5= 5x

z=4= 4x

Sum of all sides of triangle =180°

72° + 5x + 4x = 180°

72° + 9x = 180°

9x = 180° - 72°

9x = 108°

x = 108÷9

x = 12

now put the value of x

x = 5×x = 60°

z = 4×x = 48°