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Calculate the length of a side of the equilateral triangle with an area of 50cm2.

Correct result:

a =  10.7457 cm

Solution:

S=50 cm2  S=ah/2 h=3/2 a  S=a2 3/4 a=4⋅ S/3=4⋅ 50/3=10.7457 cm

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