Area of Rectangles

Area of Rectangles

How Can You Measure the Area of Rectangles?

The area of a rectangle is how much surface it covers.

Tessa is covering a bulletin board with fabric. The board is 4 feet high and 5 feet long. How much fabric does she need?

Draw a picture on graph paper. Then count the squares covered by the graph paper.

• There are 20 squares.

• Area = 20 ft²

• Tessa needs 20 square feet of fabric.

Use a formula: Area = Length x Width

• A = 5 x 4

• A = 20 ft²

• Tessa needs 20 square feet of fabric.

Multiple Choice

What is the area of this figure?

• 26 cm

• 150 cm²

• 165 cm²

• 4 cm

Multiple Choice

Find the area of the rectangle.

• 100 in²

• 95 in²

• 90 in²

• 85 in²

Multiple Choice

Find the area of the rectangle.

• 7.3 miles²

• 10.6 miles²

• 3.3 miles²

• 10.3 miles²

Fill in the Blank

What is the area of the rectangle?

Fill in the Blank

Tito is painting a mural that is 14 feet long and 12 feet wide. What is the area of the painting?

Poll

How comfortable are you with finding the area of rectangles?

• Great!

• So-So

• Confused