Question

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?

Answer 1

`29m`

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`