Angles, Angles in Circles
Key Stages: 3 and 4 ★★
Can you join up three of the points round the edge of the pegboard to create a right angle? Does it matter how many points are around the circle?
This problem builds on Triangles in Circles and Subtended Angles . It leads to the theorem about right-angles in circles.
This resource has comprehensive teachers' notes and resources, linked from the problem page. This includes possible approaches and key questions, as well as possible support and extensions.
The file attached is a HTML file, which, when opened, automatically redirects you to the problem on the NRICH website.
Key Stages: 3 and 4 ★★
Can you join up three of the points round the edge of the pegboard to create a right angle? Does it matter how many points are around the circle?
This problem builds on Triangles in Circles and Subtended Angles . It leads to the theorem about right-angles in circles.
This resource has comprehensive teachers' notes and resources, linked from the problem page. This includes possible approaches and key questions, as well as possible support and extensions.
The file attached is a HTML file, which, when opened, automatically redirects you to the problem on the NRICH website.
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Nice interactive resource where students have to spot right angles created by points on the edge of a circle. The number of points around the circle can change and this can be investigated.
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