Circle practice problems - page 6 of 51
Number of problems found: 1002
- Four-ninths of pupils
Pupils at school choose a circle. A third of them chose athletics, four-ninths of the pupils chose ceramics, and the remaining 12 pupils chose floorball. How many pupils are there in the school? How many signed up for individual circles? - Clock hands
How many times less would the hour hand per week describe if it was as long as the minute hand? - Circle radius
Calculate the circle's radius if the circumference and area are in a 2:5 ratio. - Wheel
What is the wheel diameter if the 0.57 km track turns 106 times? - Clock
How far does the tip of a clock's second hand travel in day, if the second hand is 15 mm long? - Tree trunk
Calculate the average diameter of a tree trunk whose circumference is 192 cm. - Circumference - a simple
What is the ratio of the circumference of any circle to its diameter? Write the result as a real number rounded to 2 decimal places. - The tire
The tire of a car has a radius of 10.5 inches. How many revolutions does the tire need to make for the car to travel 13,200 inches? Round to the nearest whole revolution. - Circle area circumference
The diameter of the circle is 6.8 cm. Calculate the area of the circle to 1 decimal place. Calculate the circumference of the circle to 1 decimal place. - Sprinkler irrigation area
The rotary sprinkler's spray area is 20 m. What area of land can it irrigate from one location? - Circle circumference meters
Calculate the circumference of the circle if its radius is 25 cm. Express the result in meters. - Coal mine
The towing wheel has a diameter of 1.7 meters. How many meters does the elevator cage lower when the wheel turns 32 times? - Flowerbed area calculation
What is the area of the round flowerbed, whose circumference is 62.8 m? How many edges does it have? - Circle center distance
Circles with radii r1 = 10 centimeters and r2 = 4 cm touch from the outside. What is the distance between their centers? - Clocks The length of the minute hand is 12 cm. What track in meters will its endpoint describe in a week?
- Minute angle
Find the angle swept by the minute hand of a clock in 30 minutes. - Second hand path
What path will the end of the second hand make in 24 minutes if it is 5 cm long? - Rotary motion
Find the orbital time, rotational frequency, and angular rate of the second and minute hands on the watch. - The equator
Calculate the length of the equator. Calculate a radius of 6378 km. Round to the nearest thousand. - Procedure and calculation - Central angle
The circle has a diameter of 46 cm. What is the arc length that corresponds to a central angle of 30°?
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