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Q1:
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How many invariant points are there usually under a rotation ? |
A. 0
B. 1
C. 2
D. infinite |
Answer 1:
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Q2:
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A rotation of 90° is also called a |
A. half-turn
B. quarter turn
C. three-quarter turn
D. full turn |
Answer 2:
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Q3:
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clockwise. Its image would be the point: |
A. (0, -3)
B. (0, 3)
C. (3, 0)
D. (-3, 0) |
Answer 3:
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Q4:
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What is the angle of rotation that maps the rectangle ABCD onto rectangle A'B'C'D'? |
A. 180°
B. 90°
C. 45
D. -90° |
Answer 4:
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Q5:
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In the diagram above what is the centreof rotation? |
A. D'
B. B
C. B'
D. A |
Answer 5:
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Q6:
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What is the angle of the rotation that maps rectangle ABCD to rectangle A'B'C'D'? |
A. -180°
B. -90°
C. 90°
D. 180° |
Answer 6:
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Q7:
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A rotation of 45° followed by a rotation of -45° about the same point is equivalent to: |
A. A half-turn
B. A quarter-turn
C. A rotation of 360°
D. A rotation of 90° |
Answer 7:
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Q8:
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A shape and its image after rotation are: |
A. congruent
B. different
C. parallel
D. perpendicular |
Answer 8:
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Q9:
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Which point is the centre of the rotation that maps triangle ABC to triangle A'B'C'?
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A. P
B. Q
C. R
D. None of the above |
Answer 9:
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Q10:
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What is the angle of rotation that maps triangle ABC to triangle A'B'C'? |
A. 45°
B. 90°
C. 180°
D. 270° |
Answer 10:
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