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Question
Draw a line of symmetry of semi-circle.
Solution
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Use graph paper for this question. (Take 2 cm = 1 unit along both x and y-axis.) Plot the points O(0, 0), A(-4, 4), B(-3, 0) and C(0, -3)
1) Reflect points A and B on the y-axis and name them A’ and B’ respectively. Write down their coordinates.
2) Name the figure OABCB’A’.
3) State the line of symmetry of this figure
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