The Perimeter 1 exercise appears under the 3rd grade (U.S.) Math Mission, Pre-algebra Math Mission and Mathematics I Math Mission. This exercise introduces users to basic perimeter assessments using addition and multiplication.

Types of Problems

There are two types of problems in this exercise:

  1. Finding the perimeter of shapes with given values: In this type of problem, students are given a shape (Eg: A triangle) with given side lengths and asked to find the perimeter.
  2. Finding the perimeter of complex shapes: In this type of problem, students are given a complex shape and a value for each square and asked to find the perimeter.


This is a relatively easy exercise, so if user remember their addition and multiplication and can use these skills quickly, users can earn accuracy badges and speed badges in this exercise.

Real-life Applications

  1. Perimeter is used for building a swimming pool. The owner of the pool wants to maximize the area within constraints of property and minimize the amount of digging and concrete, etc. that goes into the project. Yet the perimeter also defines length that is used for swimming races.
  2. Area and perimeter are used in many jobs for architecture and interior design.

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