Find solutions to your questions with the help of IDNLearn.com's expert community. Our platform provides accurate, detailed responses to help you navigate any topic with ease.

Everything is in the screen shoot

Everything Is In The Screen Shoot class=

Sagot :

Answer:

z = 106°

As a straight line has total 180°

Find the top inside angle:

t + 142° = 180°

t = 180° - 142°

t = 38°

Two opposite angles sum up to exterior angle.

Now find z:

68° + 38°

106°

Solution:

It should be noted:

  • The interior angles of a triangle sum up to 180°.

This means that:

  • (180 - 142) + 68 + (180 - z) = 180

Simplify the LHS.

  • 38 + 68 + (180 - z) = 180
  • 106 + (180 - z) = 180

Subtract 106 both sides.

  • -106 + 106 + (180 - z) = 180 - 106
  • => 180 - z = 74

Subtract 180 both sides.

  • => 180 - z = 74
  • => 180 - 180 - z = 74 - 180
  • => -z = -106

Divide both sides by -1.

  • -z/-1 = -106/-1
  • => z = 106

The measure of ∠z is 106°.