Respuesta :

marec519

Answer:

 ∠1 is 180° − 80° = 100°.

Step-by-step explanation:

Using the corresponding angles, the 80° angle is congruent to the angle that is supplementary to ∠1, as shown. The measure of ∠1 is 180° − 80° = 100°.

ashishdwivedilVT

The measure of ∠b comes to be 100°.

As we know,

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∠b and 80° are supplementary angles to each other.

What are the supplementary angles?

When the sum of Two angles is 180°, each angle is said to be the supplement of the other angle.

As ∠b +80° =180°

∠b = 180°-80°

∠b = 100°.

Therefore, The measure of ∠b comes to be 100°.

To get more about supplementary angles visit:

https://brainly.com/question/12919120

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