Lesson: Parallel Lines in a Triangle Geometry • Concepts and Skills • Glencoe • Geometry • enVision • Geometry • Common Core • Prentice Hall • Geometry • Common Core

Mathematics

In this lesson, we will learn how to find a missing length in a triangle using two or three parallel lines in it using proportionality.

Sample Question Videos

Q1:

In the figure, segments and are parallel. If , , and , what is the length of ?

Q2:

Determine , if .

Q3:

In the figure, and are parallel to and respectively. If , , and , determine the length of .

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