Area of Circles and Squares

What is area always measured in?

• units

• square units

Mason needs to purchase new glass for the window pictured here.  About how many square feet of glass will he need to purchase? 

• 20 ft²

• 13 ft²

• 26 ft²

• 41 ft²

At a restaurant, a waiter pushed 4 identical square tables together as shown in the diagram. The width of each table is 5 feet.  Which of the following methods could the waiter use to   determine the total serving area created by the 4 square tables?

• Multiply 5 by 5, then multiply the product by 4.

• Multiply 5 by 5, then multiply the product by 5.

• Add 4 plus 4, then multiply the sum by 5.

• Multiply 4 by 5, then add 4 to the product.

A local restaurant places tissue-paper liners in baskets for yeast rolls like the liner pictured.
About how many square centimeters of tissue paper are needed to make one liner?

• 200.96 cm²

• 379.2 cm²

• 251.2 cm²

• 253.6 cm²

The model of the backboard of a basketball goal shown on your recording sheet is composed of a rectangle and a semicircle.  Use a ruler to measure the dimensions of the model to the nearest half inch.
Which measurement is closest to the area of the model of the backboard in square inches?

• 18.56 in.²

• 31.12 in.²

• 12.28 in.²

• 23.56 in.²

11. A company’s logo is formed by drawing a circle and then replacing the two opposite quarter circles with squares as shown. 
What is the approximate area of the logo?

• 46 cm²

• 32 cm²

• 71 cm²

• 85 cm²

What is the area of the shaded region?

What is the area (to the nearest hundredth) of the figure shown below? (Both rounded regions are semi-circles.)

• 16.56 in squared

• 7.14 in squared

• 4 in squared

• 12 in squared

What is the area of semi-circle with a radius of 10 cm?

• 39.3 sq. cm

• 157 sq. cm

• 62.8 sq. cm

• 31.4 sq cm

Which of the following is closest to the area of the figure shown?

• 420 cm²

• 521 cm²

• 320 cm²

• 1,124 cm²