Perimeter of a triangle
The question
cm
Perimeter of a 13-13-20 triangle
How it works.
sides:131320
sides:131320
sides:131320
13 + 13 + 20=46 cm
- 01
Perimeter is the distance around the outside — like the length of a fence around a field.
- 02
Walk around the edge and add the sides: 13 + 13 + 20.
- 03
13 + 13 + 20 = 46 cm. It is a length, so the unit is cm, not square cm.