A vendor bought toffees at 6 for a rupee. How many for a rupee must he sell to gain 20%?
1 answer:
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So, the triangle is equilateral, all its sides are equal⇒
AB=BC=AC=8
In an equilateral triangle, the height is also the median, so it divides the sides into 2 equal parts⇒
AO=OC=8:2=4
by the Pythagorean theorem
Answer: BO=4√3
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