Area of Circles and Partial Circles

The distance around an object can be found using:

• area
• perimeter

The amount of space inside an object or figure is called:

• area
• perimeter

What does PI equal?

• 3.528 repeating
• 3.24
• 3.14
• 5.352

Find the area of this Semicircle with a diameter of 18 cm

• 254.34 cm
• 127.17 cm
• 56.52 cm
• 28.26 cm

Fins the area of this quarter circle with a radius of 6 cm.

• 56.52 cm
• 113.04 cm
• 28.26 cm
• 37.68 cm

Find the area of this semicircle with a diameter of 34 km.

• 453.73 km
• 226.87 km
• 106.76 km
• 907.46 km

Find the area of this quarter circle with a radius of 18 cm.

• 1017.36 cm
• 254.34 cm
• 26.52 cm
• 123.65 cm

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

• 20ft
• 5ft
• 31.4ft
• 62.8ft

If my diameter is 19 inches, what is my radius?

• 38 inches
• 9.5 inches
• 59.66 inches
• 119.32 inches

Mrs. Wilson placed the welcome mat shown below on her front door step. What is the area of her welcome mat in square feet? 

• 12.56 sq. in.
• 200.96 sq. in.
• 50.24 sq. in.
• 25.12 sq. in