An equilateral triangle

The perimeter of an equilateral triangle is 33cm. How long is each side?

Result

a =  11 cm

Solution:

p=33 cm  p=a+a+a=3a  a=p/3=33/3=11=11  cm p = 33 \ cm \ \\ \ \\ p = a+a+a = 3a \ \\ \ \\ a = p/3 = 33/3 = 11 = 11 \ \text { cm }

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See also our trigonometric triangle calculator.

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