Calculating Rectangle Properties

Mrs. Nelson introduces a lesson on plotting polygons on the coordinate plane, focusing on a rectangle. She explains how to plot the rectangle using given coordinates and calculates its length and width using absolute values. The lesson continues with calculating the perimeter and area of the rectangle using computation strategies. The video emphasizes understanding the coordinate plane and using mathematical strategies to determine dimensions and properties of shapes.

What is the main objective of this lesson?

• To calculate the volume of 3D shapes

• To understand the history of coordinate planes

• To plot polygons on the coordinate plane and find segment lengths

• To learn about different types of polygons

Which of the following coordinates is NOT part of the rectangle plotted in the lesson?

• (-4, 0)

• (4, 5)

• (3, -5)

• (3, 0)

How can you determine the length of a horizontal segment on the coordinate plane?

• By using the absolute value of the y-coordinates

• By measuring the angle

• By using the absolute value of the x-coordinates

• By counting the number of vertical lines

What is the length of the rectangle in the lesson?

• 7 units

• 6 units

• 8 units

• 5 units

What is the width of the rectangle in the lesson?

• 4 units

• 6 units

• 3 units

• 5 units

How is the perimeter of a rectangle calculated?

• By adding the lengths of all sides

• By multiplying the length by the width

• By adding the length and width

• By subtracting the width from the length

What is the perimeter of the rectangle discussed in the lesson?

• 20 units

• 26 units

• 22 units

• 24 units

Which method can be used to find the area of a rectangle?

• Subtracting the width from the length

• Dividing the length by the width

• Adding the length and width

• Counting the number of squares inside

What is the area of the rectangle in the lesson?

• 30 square units

• 35 square units

• 40 square units

• 45 square units

Which strategy was used to determine the lengths of the rectangle's sides?

• Using the Pythagorean theorem

• Using trigonometric functions

• Using absolute values and counting

• Using algebraic equations