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- 1. Multiple ChoiceA DVD has a diameter of 15 millimeters. Which equation would help you determine the circumference?c = 15πc = 2π15c = π(15²)c = π(7.5²)
- 2. Multiple Choice
Find the area of the circle below.113.04 cm units²18.84 cm units²9 cm units²28.26 cm units² - 3. Multiple ChoiceWhat is the diameter of this circle?3.56.567
- 4. Multiple ChoiceWhat is the radius of this circle?183696
- 5. Multiple ChoiceFind the circumference of the circle21.98153.8643.96615.44
- 6. Multiple Choice
Is the red line a radius or diameter of the circle?
Radius
Diameter
- 7. Multiple ChoiceIs the red line a radius or diameter of the circle?RadiusDiameter
- 8. Multiple Choice
What is the radius?
18
72
38
14
- 9. Multiple ChoiceFind the circumference (to the nearest whole number)88 in44 in116 square inNone of the above
- 10. Multiple ChoiceDoes this picture show the diameter or radius of a circle?DiameterRadius
- 11. Multiple ChoiceDetermine the radius of the penny59.66 mm9.5 mm38 mm119.32 mm
- 12. Multiple ChoiceAlex has trained his puppy, Popper, to jump through a ring. According to Alex's measurements and calculations, the ring has a diameter of 3.5 feet. What is the ring's circumference (use 3.14 for pi)?11.32 ft12.25 ft10.99 ft8.75 ft
- 13. Multiple ChoiceWhat is the area of this circle?8322.131134.114536.461267.09
- 14. Multiple ChoiceMs. Merine calculated that her hoop earring has a diameter of 3.5 centimeters. What is the area of her earring (round to the hundreth's place)?9.25 cm29.62 cm29.15 cm29.99 cm2
- 15. Multiple ChoiceWhat is the area of this circle?6082.121519.761893.141292.92
- 16. Multiple ChoiceFind the area of the circle56.52254.341017.36113.04
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