In this math learning exercise, students find the interior angles of the polygon. They use the information in order to determine the other dimensions as well.
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How Do You Find the Sum of the Interior Angles of a Polygon?
Squares, pentagons, triangles, polygons. How is it possible to figure out the sum of the interior angles of any of these multi-faceted shapes? There's got to be a formula. Of course there's a formula. That's what algebra is all about,...
6 mins 6th - 10th Math
Write Equations for Problems Using Facts about Angle Relationships
You can relate geometry to many sports, but this video relates it to billiards. Show your learners that the angle of approach equals the angle of departure. Challenge them to use this fact and the property of supplementary angles to...
5 mins 6th - 8th Math CCSS: Designed
Understand the Relationship Between Exterior Angles
Beginning with a review on angles, the lesson describes how exterior angles are related to interior angles. Watch how the rest of the angles can be determined based on one interior and one exterior angle given. The video finishes with...
3 mins 7th - 9th Math CCSS: Designed
How Do You Find the Measures of Exterior Angles of a Polygon if You Know the Interior Angles?
What are the exterior angles of a polygon? Polygons have exterior angles? How? Oh, extend all the lines, and find the value of each of the supplementary angles. No problem as long as one knows what supplementary angles means. Not sure?...
5 mins 6th - 10th Math