About This Lesson
<p>A and C are the opposite vertices of a square ABCD, and have coordinates (a,b) and (c,d), respectively. What are the coordinates of the vertices B and D? What is the area of the square?</p>
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Another very useful resource from N-rich. This is a problem which links together co-ordinates with Pythagoras. I think this would be an ideal group task lesson where the pupils can investigate and try to solve the problem and come up with a solution. The link comes with teacher notes and solutions for ease of planning.