Area Perimeter of Circles and Composite Figures

Find the area of the composite figure

• 40

• 9

• 49

• 61

The perimeter of a circle is usually called the...

• radius

• diameter

• circumference

• area

If my radius is 10ft, what is my diameter?

• 20ft

• 5ft

• 31.4ft

• 62.8ft

Find the perimeter

• 14 m

• 43.96m

• 176 m

• 191.96 m

Look at the composite figure. How could you find the perimeter of the figure?

• Add the four side lengths shown in the diagram.

• Divide the figure into two rectangles. Find the perimeter of each rectangle. Add the two perimeters.

• Find the two missing side lengths and add them to the four side lengths shown in the diagram.

• Multiply the four side lengths shown in the diagram.

What are the two missing side lengths?

• 6 cm and 2 cm

• 4 cm and 7 cm

• 9 cm and 7 cm

• 6 cm and 10 cm

What is the circumference of a circle with a diameter of 1 inch? Use 3.14 for pi.

• 3.14 inches

• 6.28 inches

• 314 inches

• 628 inches

What is the radius of a circle with diameter 24 cm?

• 24 cm

• 48 cm

• 12 cm 

• 72 cm

Find the circumference (to the nearest whole number)

• 88 in

• 44 in

• 116 square in

• None of the above

Look at the figure below.  What method could be used to find the area of the two-dimensional figure?

• Find the area of the trapezoid, find the area of the rectangle, and then subtract the areas.

• Find the area of the trapezoid, find the area of the rectangle, and then multiply the areas.

• Find the area of the trapezoid, find the area of the rectangle, and then divide the areas.

• Find the area of the trapezoid, find the area of the rectangle, and then add the areas.