Understanding Coordinates and Calculating Perimeter and Area

This video tutorial teaches how to find the length of sides, perimeter, and area using ordered pairs on a coordinate plane. It explains the coordinate plane, how to plot points, and how to calculate the length and width of a shape. The tutorial also covers verifying these measurements and using them to calculate the perimeter and area of a rectangle.

What is the primary goal of this lesson?

• To find the length of sides and calculate perimeter and area using ordered pairs

• To understand the history of coordinate geometry

• To learn how to draw shapes on a graph

• To memorize the coordinates of famous landmarks

Which axis runs horizontally on the coordinate plane?

• Z-axis

• Y-axis

• X-axis

• W-axis

In an ordered pair, which number represents the y-axis?

• Neither number

• Both numbers

• The second number

• The first number

How do you determine the width of a shape using ordered pairs?

• By subtracting the y-coordinates

• By multiplying the x-coordinates

• By adding the x-coordinates

• By finding the difference between the y-coordinates

What is the length of the shape if the x-coordinates are 4 and -6?

• 12 units

• 6 units

• 10 units

• 2 units

What shape is formed by the points plotted in this lesson?

• Rectangle

• Triangle

• Circle

• Square

How do you verify the length of a side on the coordinate plane?

• By counting the grid squares between points

• By measuring with a ruler

• By estimating the distance

• By using a compass

What is the formula for calculating the perimeter of a rectangle?

• Length + Width

• 2 * (Length + Width)

• Length * Width

• Length - Width

If the length is 10 units and the width is 5 units, what is the area of the rectangle?

• 25 square units

• 30 square units

• 50 square units

• 15 square units

What is the perimeter of the rectangle formed by the points?

• 20 units

• 25 units

• 35 units

• 30 units