Activity 1 (van Hiele levels 0 and 1)

You will see a coloring and shading of the interior of the square. Select Area from the Measure menu. The area of the square will be recorded. (3) Repeat the same for the squares on the segments b and c. (4) Calculate Area of square on a + Area of square on b – Area of square on c. Drag the points P and B to see the variation of this sum. Summary ................
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