Calculate Angle α: Parallel Lines with 100° Intersection Problem

Name: Video Solution: Calculate Angle α: Parallel Lines with 100° Intersection Problem
Description: Step-by-step video solution

a and b are parallel lines.

Calculate the size of angle $\alpha$ .

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00:00 Find angle A

00:07 Lines are parallel according to the given data

00:12 Corresponding angles between parallel lines are equal

00:22 Vertical angles are equal

00:26 And this is the solution to the question

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a and b are parallel lines.

Calculate the size of angle $\alpha$ .

$100$

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If one of two corresponding angles is a right angle, then the other angle will also be a right angle.

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