Co-interior Angles WORKSHEET

Suitable for Grades: 7th Grade, 8th Grade
CCSS: 7.G.B.4, 8.G.A.5
CCSS Description: Know the formulas for the area and circumference of a circle and use them to solve problems; give an informal derivation of the relationship between the circumference and area of a circle.

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. For example, arrange three copies of the same triangle so that the sum of the three angles appears to form a line, and give an argument in terms of transversals why this is so.

Co-interior Angles WORKSHEET DESCRIPTION

This worksheet is the perfect place to start when introducing co-interior angles to your learners as it is often difficult for students to distinguish between corresponding, alternate, and co-interior angles. Faced with multiple images of pairs of parallel lines and transversals, students will identify one pair of co-interior angles on each diagram. Section A consists of twelve such images.

In section B this concept is built on as three images of either two or three parallel lines, have one angle labeled and learners will identify two angles which form a co-interior pair with each one.

Now try our worksheets “Corresponding Angles” and “Alternate Angles”.