9.6 Student Practice Circles – Day 1

Remy is working on plans for a water treatment plant. One component of the water treatment plant will consist of a circular building that is 12.8 yards in diameter. Which of the following is closest to the circumference of the building?

• 20.10 yards

• 514.46 yards

• 40.19 yards

• 80.38 yards

 To keep her toddler safe, Mariah wants to put up a fence around her circular swimming pool. The swimming pool has a radius of 3.5 meters. Which is closest to how long will the fence need to be to completely fence in the swimming pool?

• 38.5 feet

• 22 feet

• 44 feet

• 11 feet  

Aarriell surveyed 200 classmates about their favorite type of pie. Each classmate chose only one type. The results are shown in the circle graph. How many more of Aarriell's classmates chose pecan than chocolate?

• 32

• 23

• 84

• 24

Manny has to mow a circular lawn. The lawn has a 20 foot radius. Which is closest to the area of the lawn in feet?

• 126 ft2

• 3,944 ft2

• 198 ft2

• 1,256 ft2

At Jim’s Pizza Palace, a large pizza is 16 inches in diameter. Which measurement is closest to the area of the top of a large pizza in inches?

• 201 square inches

• 50 square inches

• 251 square inches

• 102 square inches

Hadley needs to put fresh soil in her circular garden. The diameter of her circular garden is 18 feet. Which measurement is closest to the area in square feet of her garden?

• 56.52 ft2

• 1,017.36 ft2

• 254.34 ft2

• 113.04 ft2