Estimate the size of these angles then add your estimates together.
Teacher: There's a protractor you can drag over the angles to measure them. Hold down the shift key while dragging to rotate the protractor. The previous Flash version of this activity is here. This may be useful if you have an older web browser that does not support rotating the protractor.
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Teacher, do your students have
access to computers?
Here a concise URL for a version of this page without the comments.
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See the National Curriculum page for links to related online activities and resources.