MathLab with Mr. Ahmed

MathLab with Mr. Ahmed is a math learning website by Ahmed Amasha, a mathematics teacher teaching the American curriculum. Explore Algebra 2, Precalculus, Calculus, and SAT and PSAT Math Prep through lessons, focused practice and printable resources.

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Parallel lines and angles

Question 1 of 3

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In the figure, line ℓ is parallel to line mm.ℓm58°x°Note: Figure not drawn to scale.What is the value of xx?
Worked example
The marked angles are alternate exterior angles formed by a transversal crossing parallel lines, so they are equal: x=58x = 58.
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In the figure, line ℓ is parallel to line mm.ℓm53°x°Note: Figure not drawn to scale.What is the value of xx?