Rectangle Measurements and Properties

This lesson focuses on finding unknown measures of rectangles using given area or perimeter. Through examples, students learn to apply formulas to solve for missing dimensions. Real-world applications, such as calculating dimensions of a garden and a mural, are included to reinforce understanding. Homework assignments are provided to practice these skills.

What is the main focus of tonight's lesson?

• Finding unknown measures of triangles

• Understanding the properties of circles

• Finding unknown measures of rectangles

• Calculating the volume of cylinders

Which formula can be used to find the perimeter of a rectangle?

• Length + Width

• 2 * (Length + Width)

• Length / Width

• Length * Width

If the perimeter of a rectangle is 54 ft and the length is 20 ft, what is the width?

• 7 ft

• 14 ft

• 17 ft

• 20 ft

Given a rectangle with a perimeter of 42 m and a width of 9 m, what is the length?

• 12 m

• 21 m

• 15 m

• 18 m

How do you calculate the area of a rectangle?

• Base / Height

• Base - Height

• Base + Height

• Base * Height

If the area of a rectangle is 28 square cm and the base is 4 cm, what is the height?

• 5 cm

• 8 cm

• 6 cm

• 7 cm

A rectangle has an area of 200 square inches and a height of 25 inches. What is the base?

• 6 inches

• 7 inches

• 8 inches

• 9 inches

Susie's vegetable garden has a perimeter of 72 yards and a width of 9 yards. What is the length?

• 45 yards

• 27 yards

• 36 yards

• 18 yards

An artist's mural is 7 ft tall with an area of 84 square ft. What is the length of the mural?

• 13 ft

• 12 ft

• 11 ft

• 10 ft

If a photograph has an area of 35 square inches and a width of 5 inches, how tall is it?

• 8 inches

• 7 inches

• 6 inches

• 5 inches