Diameter of the observatory's base is 64 feet. What is the circumference of the base in feet?

Area and Circumference of Circles

Flashcard
•
Mathematics
•
7th Grade
•
Hard
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10 questions
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1.
FLASHCARD QUESTION
Front
Back
200.96 ft
2.
FLASHCARD QUESTION
Front
A company's logo was designed using circles of 3 different sizes. The diameters of the two of the circles are shown.
Which measurement is closest to the area of the largest circle in square centimeters? Options: 56.52 square centimeters, 141.30 square centimeters, 1,017.36 square centimeters, 254.34 square centimeters
Back
254.34 square centimeters
3.
FLASHCARD QUESTION
Front
A circular tablecloth has a radius of 2.5 feet. What is the length of the ribbon needed to go around the edge? Options: 7.85 ft, 15.7 ft, 19.63 ft, 31.4 ft
Back
15.7 ft
4.
FLASHCARD QUESTION
Front
A rotating lawn sprinkler sprays water in a circular area of grass with a diameter of 16 ft. What is the area in square feet that this sprinkler sprays?
Back
200.96
5.
FLASHCARD QUESTION
Front
A circle has a diameter of 22 meters. What is the circumference in meters?
Back
69.08
6.
FLASHCARD QUESTION
Front
A circular railroad-crossing sign has a diameter of 30 inches. What is the area of the sign in square inches?
Back
706.5
7.
FLASHCARD QUESTION
Front
The radius of a circle is
Back
The measurement from the center of a circle to an edge of the circle.
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