Area and Circumference of a Circle

MUST DO: Elsie bought a circular rug that is 9 feet in diameter. What is the circumference of the rug rounded to the nearest tenth of a foot?

• 4.5 feet

• 14.1 feet

• 28.3 feet

• 56.5 feet

MUST DO: What is the approximate area of the circle above?

• 44 inches squared

• 154 inches squared

• 616 inches squared

MUST DO: The radius of a circle is 12 cm. What is the approximate circumference of the circle?

• 75 cm

• 38 cm

• 24 cm

MUST DO: The diameter of a circle is 8 cm. What is the approximate area of the circle?

• 25 cm squared

• 50 cm squared

• 201 cm squared

MUST DO: A flower pot has a circumference of 35 inches. What is the approximate length of the radius of the flower pot?

• 3.3 inches

• 5.6 inches

• 6.8 inches

• 11.1 inches

MAY DO: A circular track with a diameter of 60 meters is shown. Shaleah walked around the track 4 times. Approximately how many meters did she walk?

• 377

• 2826

• 754

• 11,304

MAY DO: Sadie has 38 inches of fringe to sew around a circular pillow. What is the approximate diameter of the largest pillow she can use?

• 6 inches

• 9 inches

• 10 inches

• 12 inches

MAY DO: The circumference of a circle is 188 meters. What is the approximate radius of the circle?

• 128 meters

• 94 meters

• 60 meters

• 30 meters

ENRICHMENT: Rocky has a choice between 2 pizzas: a circular pizza with a 10-inch diameter, and a square pizza with a 9-inch side. Which statement below is true?

• The pizzas have the same area.

• The area of the square pizza is larger.

• The area of the circular pizza is larger.

• The area of the circular pizza is 100 square inches.

ENRICHMENT: A circle has a diameter of 4.5 cm. A larger circle has a diameter of 24 cm. What is the approximate difference in the circumferences of the two circles?

• 19.5 cm

• 28.5 cm

• 61 cm

• 90 cm