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Parallel Lines & Transversals Worksheet

Geometry Math · printable worksheet (PDF) with answer key · 14 problems · CCSS HSG.CO.C.9

A printable geometry parallel lines & transversals practice worksheet with 14 problems and a complete, step-by-step answer key — formatted to print cleanly on standard paper. Included in the one-time $20 unlock for the full NudgeLearn library.

Sample problems

Show your work in the space provided. When two parallel lines are cut by a transversal: corresponding angles are equal, alternate interior angles are equal, and alternate exterior angles are equal. Co-interior (same-side interior) angles are supplementary, adding to $18 0^{\circ}$ .

1. Two parallel lines are cut by a transversal. A pair of corresponding angles is formed, and one measures $7 4^{\circ}$ . Find the measure of the other.
2. Two parallel lines are cut by a transversal. A pair of alternate interior angles is formed, and one measures $5 8^{\circ}$ . Find the measure of the other.
3. Two parallel lines are cut by a transversal. A pair of co-interior (same-side interior) angles is formed, and one measures $11 3^{\circ}$ . Find the measure of the other.
4. Lines $m$ and $n$ are parallel. The two marked angles are corresponding angles. Find the value of $x$ .

Plus 10 more problems and a full answer key in the PDF.

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