Equilateral Triangle
Geometry
Level
1
If the 3 sides of an equilateral triangle are increased 9 times their length, the area becomes:
90x more large
9x more large
81x more large
30x more large
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the area of an equilateral triangle with side x is given by [ s q r t 3 / 4 ] ∗ x 2 ........{proportional to x^2} hence we see that when side is increased 9 times the area increases by 81 times(the square of 9).