# How do you find the perimeter of a triangle in which the sides measure #2sqrt7, 6sqrt7, 4sqrt7#?

##### 1 Answer

Oct 29, 2016

#### Explanation:

The perimeter of the triangle is the sum of all 3 sides.

#rArr2sqrt7+6sqrt7+4sqrt7=12sqrt7≈31.749# We can collect 'like radicals' together in the same way we collect like terms in algebraic expressions.