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Question
A triangle LMN has been reduced by scale factor 0.8 to the triangle L' M' N'. Calculate: the length of M' N', if MN = 8 cm.
Solution
Given that LMN is a triangle that has been reduced by scale factor m = 0.8 to the triangle L' M' N'
MN = 6 cm
So, MN (0.8) = M'N'
`=>` (8) (0.8) = M'N'
`=>` M'N' = 6.4 cm
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