# The perimeter of a triangle is 78 m. If one side of the triangle is 25 m and the another side of 24 m, how long is the third side of the triangle?

Oct 28, 2015

$29 m$

#### Explanation:

Perimeter is total distance right around the shape.

$\therefore$ Perimeter = side 1 + side 2 + side 3

$\therefore 78 = 25 + 24 + x$

$\therefore x = 78 - 25 - 24 = 29$