This is a DOUBLE set of brand new task cards designed to support the core 7.G.B.5 standard in which students use their knowledge of interior, adjacent, complementary and supplementary angles to find the measurement of unknown angles.
I designed these cards to use with student who had practice solving problems involving parallel lines and angle problem solving. I wanted to take them a step farther and apply their knowledge of interior angles within polygons. They are meant to require reasoning, and I feel show well whether or not students really understand how angles fit together within (and outside of) polygons. There are two complete sets of task cards included in this set, each requiring a slightly different set of skills.
Set 1 requires students to have knowledge of the (n-2)* 180 formula to find the sum of interior angles in a regular polygon. They also need to know about the connection between congruent sides and congruent angles in triangles. It presents many different regular polygons in which students must first find the interior angles, and then use that information to find another angle. Some of the angles are exterior angles, and others are exterior by formed by the spaces between multiple polygons.
Set 2 requires students to know that the sum of interior angles in a triangle is 180 degrees, and within a convex quadrilateral is 360 degrees. They use that knowledge to find all of the interior angles within a polygon, and then solve for a missing exterior, supplementary angle.
This set includes 48 task cards (24 per set), all necessary student recording sheets and answer keys. It also includes a bonus worksheet (great for homework) that supports set 2. The answer key is also included, as is a note from me about the cards themselves.
This is a 19-page PDF file. Cards are presented 4 per page for 12 pages. The recording sheets and answer keys are an additional 4 pages. The worksheet and answer key are 2 pages, and the note from me is the final page of the set.