Angle PointsApply the properties of angles at a point, angles at a point on a straight line and vertically opposite angles 
This is level 3: vertically opposite angles. You can earn a trophy if you get at least 7 questions correct.
This is Angle Points level 3 (Vertically opposite angles). You can also try:
Angles at a point
Angles on a straight line
A mixture of questions similar to those in levels 1 to 3
Angles in triangles
Angles with Parallel Lines
Angles in Polygons
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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Level 1  Angles at a point
Level 2  Angles on a straight line
Level 3  Vertically opposite angles
Level 4  A mixture of questions similar to those in levels 1 to 3
The mixed questions provide a recap of levels one to three and introduce some algebra. This level offers an opportunity for a little more problem solving rather than simply applying a rule.
Example:
Angles at a pointThe sum of the angles that fit around a point is 360°. a° + b° + c° = 360° 

Angles on a straight lineThe sum of the angles that fit on a straight line 180°. a° + b° = 180° 

Vertically opposite anglesWhere two straight lines cross vertically opposite angles are equal. a = b 
Don't wait until you have finished the exercise before you click on the 'Check' button. Click it often as you work through the questions to see if you are answering them correctly.
Answers to this exercise are available lower down this page when you are logged in to your Transum account. If you don’t yet have a Transum subscription one can be very quickly set up if you are a teacher, tutor or parent.
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