Respuesta :

43+z=180
43 and z are linear pairs (their measures add up to 180 degree)

z=180-43=137

The value of z in this figure is 137°

Data;

  • x
  • y
  • z
  • 43

Opposite Angles in a Parallel Line

To find the value of z; we know that y = 43°

y = 43°

reason: Opposite angles are equal

But knowing this, we can find the value of z.

But know that z = x = a

However,

[tex]43 + y + x + z = 360^0[/tex]

Reason: Angles at a point equal 360°

But since x = z = a, and y = 43

[tex]43 + 43 + a + a = 360^0\\86 + 2a = 360^0\\2a = 360 - 86\\2a = 274\\a = \frac{274}{2} \\a = 137[/tex]

The value of both z and x is equal to 137°

The value of z in this figure is 137°

Learn more on angles at a point here;

https://brainly.com/question/14362353