Perimeter of triangle 4.5, 6, 7.5

Step by step

The question

Question: find the perimeter of a triangle with sides 4.5, 6, 7.5.

1 Add all the sides

The perimeter is the way all around the edge.

We add every side.

Walk around and add: 7.5 + 6 + 4.5.

7.5 plus 6 is 13.5.

13.5 plus 4.5 is 18.

So the perimeter is 18.