Calculating Areas of Rectangles

Mrs. Penn A. Nickel teaches Ethan how to calculate the area of composite figures. The lesson begins with a review of finding the area of a rectangle, followed by steps to calculate the area of composite figures made up of rectangles. Ethan practices solving problems, including a word problem involving the classroom layout. The lesson emphasizes breaking down complex shapes into simpler rectangles and summing their areas.

What is the main topic of the lesson introduced by Mrs. Penn a Nickel?

• Area of composite figures

• Area of circles

• Volume of cubes

• Perimeter of triangles

What is the formula for finding the area of a rectangle?

• Length + Width

• Length x Width

• 2 x (Length + Width)

• Length - Width

What are the two dimensions needed to calculate the area of a rectangle?

• Height and Base

• Length and Width

• Radius and Diameter

• Side and Angle

How can you find the area of a composite figure made of two rectangles?

• Divide the area of one rectangle by the other

• Multiply the areas of the rectangles

• Add the areas of the rectangles

• Subtract the area of one rectangle from the other

What is the first step in finding the area of a composite figure?

• Add the lengths of all sides

• Draw a line to separate the shapes

• Multiply the lengths of all sides

• Subtract the smaller shape from the larger one

In the example problem, what is the area of the first rectangle?

• 12 square feet

• 36 square feet

• 48 square feet

• 24 square feet

What is the area of the second rectangle in the example problem?

• 18 square feet

• 12 square feet

• 24 square feet

• 30 square feet

What is the total area of the composite figure in the example problem?

• 36 square feet

• 72 square feet

• 48 square feet

• 60 square feet

In the word problem, what is the length of the first rectangle?

• 8 meters

• 5 meters

• 10 meters

• 3 meters

What is the width of the first rectangle in the word problem?

• 3 meters

• 5 meters

• 10 meters

• 8 meters