GEOMETRY A Review of Shapes in Geometry Grades 9-12 Jon Dressler Forward

Navigation Click on a shape or the shape’s name to find out some facts about it. Click on the arrow after looking at each shape to take a review quiz. Triangle Square Pentagon Hexagon Heptagon Octagon Nonagon Decagon Quiz!

Triangle A triangle is a three sided shape Each angle of a regular triangle is 60 degrees The total number of degrees in a triangle is 180 Back

Square A square is a four sided figure All sides of a square are the same length Each angle of a square is 90 degrees Back

Pentagon A pentagon is a five sided figure Each angle of a regular pentagon is 108 degrees The total number of degrees in a pentagon is 540 Back

Hexagon A hexagon is a six sided figure Each angle of a regular hexagon is 120 degrees The total number of degrees in a hexagon is 720 Back

Heptagon A heptagon is a seven sided figure Each angle of a regular heptagon is 128 degrees The total number of degrees in a heptagon is 900 Back

Octagon An octagon is an eight sided figure Each angle of a regular octagon is 135 degrees The total number of degrees in an octagon is Back

Nonagon A nonagon is a nine sided figure Each angle of a regular nonagon is 140 degrees The total number of degrees in a nonagon is 1260 Back

Decagon A decagon is a ten sided figure Each angle of a regular octagon is 144 degrees The total number of degrees in a decagon is 1440 Back

Which shape has seven sides? A.HexagonHexagon B.HeptagonHeptagon C.OctagonOctagon

Hexagon This is not the correct answer. A hexagon only has six sides. Please try again. Back

Heptagon This is the correct answer! A heptagon has seven sides. Conclusion

Octagon This is not the correct answer. An octagon has eight sides. Please try again. Back

Congratulations You have correctly answered the review question and completed the lesson. Click the arrow to reset the PowerPoint for the next person. Back