# An equilateral triangle

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

Result

a =  11 cm

#### Solution:

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

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