Circles Practice (Circumference and Area)

A rose garden is circular. The diameter of the garden is 18 ft. Which is the closest to the total area?

• 56.52 ft²

• 63.59 ft²

• 113.04 ft²

• 254.34 ft²

A circular swimming pool has a radius of 15 feet. The family that owns the pool wants to put up a circular fence that is 5 feet away from the pool at all points. Which is closet to the circumference of the fence they will need?

• 94.2 ft

• 125.6 ft

• 157 ft

• 188.4 ft

Lana is putting lace trim around the border of a circular tablecloth. The table cloth has a diameter of 1.2 meters. To the nearest meter, what is the least amount of lace she needs?

• 3 m

• 4 m

• 7 m

• 8 m

Randy's bicycle tires have a diameter of 42 centimeters. Which is closest to the circumference of one of the tires?

• 65.94 cm

• 87.14 cm

• 131.88 cm

• 441 cm

Pete needs to install a circular window with a radius of 7.25 inches. Which is closest to the amount of glass he will need?

• 22.77 in²

• 41.26 in²

• 45.53 in²

• 165.05 in²

At Palermo Pizzeria pizzas are sold by their diameter. Rihanna orders a 14-inch pizza. Which is the closest to the area of the pizza?

• 21.98 in²

• 43.96 in²

• 153.86 in²

• 307.72 in²

A circular pin has a diameter of 6.2 centimeters. Which is closest to the area of the pin?

• 30.18 cm²

• 19.47 cm²

• 15.54 cm²

• 9.74 cm²

What is the radius of a circle when the circumference is

 $16\pi$  cm

• 16 cm

• 12 cm

• 8 cm

• 4 cm

A glass window is in the shape of a semicircle with dimensions shown. What is the approximate perimeter of the window?

• 1.9 m

• 3.1 m

• 3.8 m

• 5.0 m

The diameter of a circular flower bed is 12 meters. What is the area of the flower bed?

• 37.68 m²

• 75.36 m²

• 113.04 m²

• 452.16 m²