K-5 friendly lesson
One small step at a time.Read the idea, try the activity, and celebrate each win as you go.
Perimeter: word problems
Perimeter means distance around a shape. It helps with fences, borders, and paths.
Do this: Read the concept below, then try the quiz or activity.
Lesson 118 of 220
Concept
Rectangle perimeter formula: P = 2 × (length + width)
Example: Length 9 m, width 4 m P = 2 × (9 + 4) = 26 m
For any polygon: Add all side lengths.
Try it
Find each perimeter: 1. Rectangle 12 cm by 5 cm 2. Square side 8 in 3. A garden path with sides 6, 6, 4, 4, 3, 3 m 4. A rectangle has perimeter 30 ft and length 9 ft. Find width.