How many different shapes with an area of 2 square units can you make by joining dots on this grid with straight lines?
By how much would the area of this triangle increase if its base was enlarged to 8cm?
Which of the two shapes has the largest area? You will be surprised!
The missing square puzzle is an optical illusion used to help students reason about geometrical figures.
Find the dimensions of a rectangle given the perimeter and area.
Calculate the areas of all the possible quadrilaterals that can be constructed by joining together dots on this grid.
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An opportunity for students to write a computer program. There is nothing to download, all of the interaction takes place in the browser. Great for understanding angles and the properties of shapes.
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