Question

Can anyone say me??.. the answer wl be grateful

Answer 1

Answer:

1) (6x-40) + (5x+9) + (3x + 15) = 180°

[ linear pair ]

=> 6x - 40 + 5x + 9 + 3x + 15 = 180°

=> 14x - 16 = 180

=> 14x = 180 + 16

=> 14 x = 196

=> x = 14

3) x:y:z = 2:3:4

=> 2x + 3x + 4x = 180° [ linear pair ]

=> 9x = 180

=> x = 20

now Z = 4x = 4*20 = 80°