Polygon Angles Level 1Practise the skills of finding interior and exterior angles of polygons to answer these questions. 
Fill in the table with the names and angle sizes of the first eight regular polygons.
* Give the angles of the seven sided polygon correct to one decimal place.
This is Polygon Angles level 1. You can also try:
Level 2
Level 3
Here are some related exercises:
Angles in Triangles
Angle Points
Angles in Parallel Lines
Angles in Circles
Or have fun with the game called Polybragging.
InstructionsTry your best to answer the questions above. Type your answers into the boxes provided leaving no spaces. As you work through the exercise regularly click the "check" button. If you have any wrong answers, do your best to do corrections but if there is anything you don't understand, please ask your teacher for help. When you have got all of the questions correct you may want to print out this page and paste it into your exercise book. If you keep your work in an ePortfolio you could take a screen shot of your answers and paste that into your Maths file. 



Transum.orgThis web site contains over a thousand free mathematical activities for teachers and pupils. Click here to go to the main page which links to all of the resources available. Please contact me if you have any suggestions or questions. 
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Mathematicians are not the people who find Maths easy; they are the people who enjoy how mystifying, puzzling and hard it is. Are you a mathematician? Comment recorded on the 14 September 'Starter of the Day' page by Trish Bailey, Kingstone School: "This is a great memory aid which could be used for formulae or key facts etc  in any subject area. The PICTURE is such an aid to remembering where each number or group of numbers is  my pupils love it! Comment recorded on the 28 May 'Starter of the Day' page by L Smith, Colwyn Bay: "An absolutely brilliant resource. Only recently been discovered but is used daily with all my classes. It is particularly useful when things can be saved for further use. Thank you!" 


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Go MathsLearning and understanding Mathematics, at every level, requires learner engagement. Mathematics is not a spectator sport. Sometimes traditional teaching fails to actively involve students. One way to address the problem is through the use of interactive activities and this web site provides many of those. The Go Maths page is an alphabetical list of free activities designed for students in Secondary/High school. Maths MapAre you looking for something specific? An exercise to supplement the topic you are studying at school at the moment perhaps. Navigate using our Maths Map to find exercises, puzzles and Maths lesson starters grouped by topic. TeachersIf you found this activity useful don't forget to record it in your scheme of work or learning management system. The short URL, ready to be copied and pasted, is as follows: 

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Level 1  Name and find the size of the angles in regular polygons.
Level 2  Find the size of the angles marked with letters in simple diagrams.
Level 3  A mixture of problems related to the angles in polygons.
Each exterior angle of an nsided regular polygon is 360° ÷ n
Each interior angle of an nsided regular polygon is 180° − 360° ÷ n
The sum of the exterior angles of any polygon is 360°.
The sum of the interior angles of an nsided polygon is 180(n − 2)°.
Interactive animation showing why exterior angles add up to 360°
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