If you want to draw an aeroplane on a small sheet of paper while looking at a real plane on the runway, which of the following concepts do you use?
A
Similarity
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B
Not possible to draw
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C
Congruency
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D
Dilation
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Solution
The correct options are A Similarity D Dilation The method of using similarity to draw enlarged or reduced figures is known as dilation. As we cannot draw the aeroplane original size on a small paper, we use similarity to draw the scaled version with some scale factor.