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8. Let the sides of triangle be 3x and 2x.
Given that area is equal to 108cm².
Area of triangle =1/2×b×h
=1/2×3x×2x=108
=1/2×6x²=108
6x²=108×2÷1
6x²=216
x²=216/6
x²=36
x=6cm.
So, lengths are 3×6=18cm and 2×6=12cm respectively.
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(1) 49 centimeter square
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