TylerGamingHD TylerGamingHD

12-07-2017
Mathematics

contestada

What is the perimeter of a triangle with side lengths of 9, 12, and 4x?

1. 25
2. 25 + x
3. 21x
or
4. 21 +4x

Respuesta :

edwinjr888 edwinjr888

12-07-2017

the answer is 21 + 4x.

You find this answer by adding up all the sides.
9+12+4x= 21+4x ... you don't add 4x because it has a variable that we do not know of the value.

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