Cluster 6 - Circle ET

Which of these best describes π?

• The area of a circle divided by its diameter.

• The circumference of a circle divided by its radius.

• The circumference of a circle times 3.14

• The ratio of a circle’s circumference to its diameter.

 A circular embroidery hoop has a diameter of 11 inches. Which measurement is closest to the area of the hoop in square inches? ​ (a)  

• 94.99 in2
• 69.08 in2
• 34.53 in2
• 1193.01 in2

Victoria is designing a label for a can of cat food. The diameter of the can is 5.2 inches, as shown in the diagram. Which measurement is closest to the circumference of the base of the can in inches? (a)  

• 16.33 inches
• 32.66 inches
• 8.16 inches
• 21.23 inches

 A circular mirror has a radius of 3.4 feet. Rosalinda is decorating the edge of the mirror with washi tape. If she has exactly enough washi tape, which measurement is closest to the length of the piece of washi tape in feet?

• 10.68 ft

• 6.54 ft

• 36.30 ft

• 21.35 ft