Problem 9 · 2013 Math Kangaroo
Medium
Spatial & Visual Reasoning
transformationsreflection
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Answer: D
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Hint 1 of 2
Do the two moves in order: first the 90° anti-clockwise turn, then the reflection in the x-axis.
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Hint 2 of 2
Track both the open gap of the three-quarter circle and the direction the arrow points after each move.
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Approach: apply the rotation then the reflection, tracking gap and arrow
- Start from the given three-quarter circle and its arrow.
- Rotate the whole picture 90° anti-clockwise about M.
- Then reflect that result across the x-axis.
- The picture that results is option D.
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