Perimeter of a rectangle
The question
cm
Perimeter of a 15 by 8 rectangle
How it works.
sides:158158
sides:158158
sides:158158
15 + 8 + 15 + 8=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: 15 + 8 + 15 + 8.
- 03
15 + 8 + 15 + 8 = 46 cm. It is a length, so the unit is cm, not square cm.