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In this lesson, we will learn how to use parallelism of lines to find a missing length of a line segment in a transversal line cut by parallel lines.

Q1:

In the figure, given that π΅ πΆ = 9 4 , what is π΅ πΈ ?

Q2:

Find the lengths of πΈ πΆ and π· π΅ .

Q3:

Given that π΄ π΅ = ( 2 π₯ + 1 ) cm, π΅ πΆ = ( π₯ + 3 ) cm, π· πΈ = ( 3 π₯ β 1 ) cm, πΈ πΉ = π¦ c m , πΊ π» = 1 1 c m , and π» πΌ = 1 0 c m , find the values of π₯ and π¦ .

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