Bryony's Triangle Watch the video BryonyTriangle.mp4 in which Bryony demonstrates how to make a flower from a square of paper. She then sets you a challenge: what fraction of the original square of paper is the shaded triangle? The correct answers came from Yasmin and Dev. The photograph is Yasmin's answer and see below for the detailed solution Dev gave: After folding the flower and shading the triangle that was shown in the video, I took another square paper the same size as the flower but left it unfolded. I traced the shaded triangle onto the corner of the unfolded square of paper. Then, I divided the unfolded square into 16 equal squares. Then, I used a ruler to divide one of the 16 squares into triangles the same size as the shaded one on the flower. I counted the number of triangles in the 16th of the square. There were 32 total triangles in that 16th. 32× 16=512 So, there are 512 triangles the size of the shaded one in the original square of paper, therefore the shaded triangle is 1/512.
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Rectangle Tangle Well done to Dev, Kai, Yasmin, William, Mia, Milena and Abbas for the correct answers. A special mention to Luca and Abe for having a go!
1=1/8 2=1/16 3=3/16 4=1/16 5=1/8 6=1/16 7=3/32 8=1/32 9=1/32 10=1/64 |
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May 2017
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