Question

Find the unknown angles in the following figure

Answer 1

Answer:

a) all are 90'

b)angle x is 105 and y is 140 and z is 40

c)angle c is 52 and b is 128 and a is52

Answer 2

Answer:

Step-by-step explanation:

a) x+3x=180° (Co-interior angle)

  4x=180

  x=180/4

  x=45°

b) 40+x+35=180 (linear angle)

 75+x=180

 x=180-75

 x=105°

40+y=180 (linear angle)

 y=180-40

 y=120°

 y+z=180 (linear angle)

120+z=180

 z=180-120

z=40°

c) a+85+43=180 (linear angles)

 a+128=180

 a=180-128

 a=52°

  c+85+43=180 (linear angles)

 c=52°

 c+b=180 (linear angles)

 52+b=180

b=180-52

b=128°