coolismyjob1 coolismyjob1

14-07-2018
Mathematics

contestada

What is the first step in proving that the sum of the measures of triangle PQR is 180°?

Construct a line parallel to segment PQ
Construct a bisector of angle P
Construct a midpoint of segment QR
Construct a perpendicular bisector of segment PR

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Ariannamarie01 Ariannamarie01

24-10-2018

I just took this quiz, so I am certain I'm right!

The first step is A. Construct a line parallel to segment PQ

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yogeshkumar49685 yogeshkumar49685

08-07-2022

The first step in proving that the sum of the measures of triangle PQR is 180 is to construct a line parallel to segment PQ.

What are parallel lines?

Parallel lines are those lines which cannot met each other in any way.

How to find sum of angles?

We have been given triangle PQR and we need to find out the sum of the angles of triangle PQR be 180°.

First step in this is firstly to construct a line parallel to segment PQ and after that we can say that the angles on a line is equal to 180 and then divide the angles into three equal parts after summing up we can say that the sum of angles is 180 degrees.

Hence the first step is constructing a line parallel to PQ.

Learn more about parallel lines at https://brainly.com/question/16742265

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