Question 551633
IN a 30-60-90 triangle the lengths of the sides are always in the following ratios:<P>
1:2:sqrt(3) is the ratio for the sides opposite 30:90:60 degree angles.<P>

The hypotenuse is 2*14=28 cm.  Therefore the length of every side from the standard ratio 1:2:sqrt(3) is multiplied by 14.  Thus the sides are:<P>
1*14=14, 28, 14*sqrt(3).<P>
The perimeter is the sum of the sides' lengths which is:<P>
14+28+14*sqrt(3) = approximately 66.25 cm.
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