Construct a triangle with perimeter 12cm in ratio of the side 1:3:3
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x + 3x +3x = 12
7x =12
x =12/7
x=12/7. 3x = 3 × 12/7 = 36/7
7x =12
x =12/7
x=12/7. 3x = 3 × 12/7 = 36/7
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