Measuring Perimeter with Grids

The video tutorial explains the concept of perimeter as the length of the outline of a shape. It demonstrates how to calculate the perimeter using a grid by counting the squares around a shape. Two examples are provided: one using a one-centimeter squared grid and another using a one-meter squared grid. The tutorial emphasizes the importance of marking sides to avoid double-counting and checking units for accuracy.

What is the perimeter of a shape?

• The diagonal of the shape

• The volume of the shape

• The length of the outline of the shape

• The area inside the shape

Which method is used to measure perimeter in the video?

• Using a protractor

• Using a ruler

• Using a compass

• Using a grid

What is the first step in calculating the perimeter using a grid?

• Count the squares inside the shape

• Measure the diagonal

• Look at the units on the grid

• Draw the shape

What is the significance of the label on the grid?

• It provides the area of the grid

• It tells the shape of the grid

• It indicates the units of measurement

• It shows the color of the grid

What is the unit of measurement for the grid in the first example?

• Feet

• Meters

• Centimeters

• Inches

How many squares are counted around the shape in the first example?

• Four

• Five

• Six

• Seven

What is the perimeter of the shape in the first example?

• Seven centimeters

• Six centimeters

• Five centimeters

• Four centimeters

What is the perimeter of a shape if there are six squares around it on a one centimeter squared grid?

• Six feet

• Six inches

• Six centimeters

• Six meters

In the second example, what is the unit of measurement for the grid?

• Feet

• Centimeters

• Meters

• Inches

How many squares are counted around the shape in the second example?

• Six

• Seven

• Nine

• Eight