Grade 7 | Unit 3 | Lesson 5: Circumference and Wheels | Practice Problems

The diameter of a bike wheel is 27 inches. If the wheel makes 15 complete rotations, how far does the bike travel?

• 405π inches

• About 1,272 inches

• 106 feet

The wheels on Kiran's bike are 64 inches in circumference. How many times do the wheels rotate if Kiran rides 300 yards?

• About 169 times

• There are 36 inches in a yard so 10,800 inches in 300 yards

The numbers are measurements of radius, diameter, and circumference of circles A and B. Circle A is smaller than circle B. Which number belongs to which quantity?

• Circle A: radius 2.5, diameter 5, circumference 15.7

• Circle B: radius 7.6, diameter 15.2, circumference 47.7

• 4 m

• CD: 10 cm

• AB: 5 cm

• Segments with the same length as AB: CA, AF, AD, AG, AE