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2014 Math Kangaroo

Problem 1

Problem 1 · 2014 Math Kangaroo Easy
Spatial & Visual Reasoning sequence-of-figuressymmetry

Luisa draws a star. She cuts a piece out of the middle of the drawing. What does this piece look like? (Choose the matching picture.)

Figure for Math Kangaroo 2014 Problem 1
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Answer: D
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Hint 1 of 3
Look only at the very centre of the star, where all the points meet.
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Hint 2 of 3
Count how many little spikes shoot out from that middle point.
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Hint 3 of 3
Find the picture whose spikes point the same way and there are the same number of them.
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Approach: look only at the middle and match the spikes
  1. Cover the outside of the star with your hand and look at just the middle.
  2. Lots of points all touch there, so the little circle should be full of spikes shooting out in every direction.
  3. Put each picture next to the centre of the star and find the one whose spikes line up the same way.
  4. That matching piece is D.
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