Busy. Please wait.
Log in with Clever
or

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever
or

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Polygons

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
        Help!  

Term
Definition
Acute triangle   Triangle where all angles are acute (less than 90 degrees)  
🗑
Decagon   Polygon with ten sides and ten angles  
🗑
Equilateral triangle   Triangle where all 3 sides and all 3 angles are the same size  
🗑
Heptagon   Polygon with seven sides and seven angles  
🗑
Hexagon   Polygon with six sides and six angles  
🗑
Isosceles triangle   Triangle where 2 sides and 2 angles are the same size  
🗑
Nonagon   Polygon with nine sides and nine angles  
🗑
Obtuse triangle   Triangle where one angle is obtuse (greater than 90 degrees). The other two are acute  
🗑
Octagon   Polygon with eight sides and eight angles  
🗑
Parallelogram   A quadrilateral where opposite sides are parallel and congruent  
🗑
Pentagon   Polygon with five sides and five angles  
🗑
Quadrilateral   a polygon with four sides and 4 angles  
🗑
Rectangle   A quadrilateral that is a parallelogram and has four right angles and sides that are perpendicular  
🗑
Regular Polygon   Polygon with all sides and all angles congruent  
🗑
Rhombus   a quadrilateral that is a parallelogram and has 4 congruent sides  
🗑
Right triangle   Triangle where one angle is a right angle (90 degrees). The other two are acute.  
🗑
Scalene triangle   Triangle where no sides and no angles are the same size  
🗑
Square   a quadrilateral that is a parallelogram a rectangle and a rhombus  
🗑
Trapezoid   A quadrilateral with only one pair of parallel sides  
🗑
Triangle   Polygon with three sides and three angles  
🗑


   

Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
 
To hide a column, click on the column name.
 
To hide the entire table, click on the "Hide All" button.
 
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
 
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.

 
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how
Created by: Shebro
Popular Math sets