find the percentage increase in the area of a triangle if its each side is doubled
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Let us take a simple case of a right-angled triangle of sides 3 cm, 4 cm and 5 cm.
Its area will be 3*4/2 = 6 sq cm.
If you double the sides of the right-angled triangle they become 6 cm, 8 cm and 10 cm.
The new area will be 6*8/2 = 24 sq cm.
This is four times the original area.
Hence the increase in area is 300 %.
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