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



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