The perimeter of an equilateral triangle is 6n - 15. write an expression to represent the length of each side.

answer: (6n - 15) / 3 which = 2n-5

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the perimeter of an equilateral triangle is 6n - 15.

each side length on an equilateral triangle is equal to one another, and there are 3 of them.

thus, if we were to divide the equation by 3, we would get the expression for the length of each side.

(6n - 15)/3

use the distributive property of division.

= (6n)/3 - 15/3

simplify

= 2n - 5

that should be your answer. happy studying~

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

=

side j'k'=distance between j' and k'

=

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl