Polygon Angles Level 2Practise the skills of finding interior and exterior angles of polygons to answer these questions. |
Find the size of the angles marked with letters in these diagrams. You can earn a trophy if you get at least nine questions correct.
This is Polygon Angles level 2. You can also try:
Level 1
Level 3
Here are some related exercises:
Angles in Triangles
Angle Points
Angles in Parallel Lines
Angles in Circles
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. |
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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 10 September 'Starter of the Day' page by Carol, Sheffield PArk Academy: "3 NQTs in the department, I'm new subject leader in this new academy - Starters R Great!! Lovely resource for stimulating learning and getting eveyone off to a good start. Thank you!!" Comment recorded on the 10 April 'Starter of the Day' page by Mike Sendrove, Salt Grammar School, UK.: "A really useful set of resources - thanks. Is the collection available on CD? Are solutions available?" |
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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. | ||
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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.
The sum of the exterior angles of any polygon is 360°.
The sum of the interior angles of an n-sided polygon is (180n − 360)°.
Each exterior angle of an n-sided regular polygon is 360° ÷ n
Each interior angle of an n-sided regular polygon is 180° − 360° ÷ n
Interactive animation showing why exterior angles add up to 360°
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