Name Angle Pairs Formed by a Transversal
Written by Adi Ackerman, Head Teacher
"Name Angle Pairs Formed by a Transversal" is written for 8th Grade (Ages 13-14), and it covers Common Core 8.G.A.5. A 7th grader who is already steady on geometry can use it too, and an older student can use it as a short review.
8th grade math worksheet: name 10 transversal angle pairs as corresponding, alternate interior or exterior, or same-side interior. Answer key included. Part of our angle relationships geometry collection. Aligned to Common Core standards.
How do I use this worksheet?
Teach the pair names with the first sheet before any measuring. Use the eight angle sheet to show which angles are equal and which are supplementary, then assign the algebra sheet.
What students will practice
- Students will identify corresponding, alternate interior, alternate exterior and same-side interior angles.
- Students will use arrow marks to recognize parallel lines in a diagram.
- Students will name 10 angle pairs across two numbered diagrams.
Find Angles on Parallel Lines Cut by a Transversal
Solve for x With Transversal Angle Pairs
Triangle Angle Sum, Find the Missing Angle
Why Triangle Angles Sum to 180 Degrees
Quadrilateral Angle Sums From Two Triangles
Triangle Interior Angles, Solve for the Variable
Exterior Angle of a Triangle, Find the Measure
Exterior Angles, Solve for the Variable
Curriculum Links
Common Core State Standards
Geometry · 8th Grade
Standard: Use informal arguments to establish facts about the angle sum and exterior angle of triangles, about the angles created when parallel lines are cut by a transversal, and the angle-angle criterion for similarity of triangles.
View all 8.G.A.5 worksheets →Find this in the curriculum
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FAQ
How do I use this angle relationships worksheet?
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Teach the pair names with the first sheet before any measuring. Use the eight angle sheet to show which angles are equal and which are supplementary, then assign the algebra sheet.
What does this worksheet teach?
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Name 10 transversal angle pairs as corresponding, alternate interior or exterior, or same-side interior. The directions on the page read: In each diagram, the two lines with arrow marks are parallel. Name each angle pair as corresponding, alternate interior, alternate exterior or same-side interior. An answer key is included.
Can I use this angle relationships worksheet for homeschool or classroom?
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Yes, both. We made it for 8th grade geometry, and it works the same at home or at school. At home, a student can work through it alone and then go over it with you, which shows quickly what is solid and what needs another look. In class it works as independent practice, homework or a warm-up, and you can print one copy or a full set.
What are alternate interior angles?
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They lie on opposite sides of the transversal and between the two parallel lines. Alternate interior angles are equal, so knowing one tells you the other.
Which angle pairs add up to 180°?
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Same-side interior angles add up to 180° when the lines are parallel, and so do the two angles of a linear pair. Corresponding, alternate interior and alternate exterior angles are equal.
How do you solve for x with parallel lines?
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Name the angle pair first. If the angles are equal, set the expressions equal, and if they are supplementary, set their sum to 180°. Then solve for x and find both angles.
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Find Angles on Parallel Lines Cut by a Transversal
Solve for x With Transversal Angle Pairs
Triangle Angle Sum, Find the Missing Angle
Why Triangle Angles Sum to 180 Degrees
Quadrilateral Angle Sums From Two Triangles
Triangle Interior Angles, Solve for the Variable
Exterior Angle of a Triangle, Find the Measure
Exterior Angles, Solve for the Variable