Wheel diameter

A 1m diameter wheel rolled along a 100m long track. How many times did it turn?

Result

n =  31.831

Solution: Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...): Be the first to comment! Next similar examples:

1. Well Rope with a bucket is fixed on the shaft with the wheel. The shaft has a diameter 50 cm. How many meters will drop bucket when the wheels turn 15 times?
2. Mine Wheel in traction tower has a diameter 5 m. How many meters will perform an elevator cabin if wheel rotates in the same direction 49 times?
3. Odometer The odometer is driven by rotation of the wheel whose diameter is 65 cm. After how many rotations the wheel turns counter to next kilometer?
4. Bicycle wheel After driving 157 m bicycle wheel rotates 100 times. What is the radius of the wheel in cm?
5. Flowerbed In the park there is a large circular flowerbed with a diameter of 12 m. Jakub circulated him ten times and the smaller Vojtoseven times. How many meters each went by and how many meters did Jakub run more than Vojta?
6. Saw Blade circular saw with a diameter 42 cm turns 825 times per minute. Expresses his cutting speed in meters per minute.
7. Circle r,D Calculate the diameter and radius of the circle if it has length 52.45 cm.
8. Circumference - a simple What is the ratio of the circumference of any circle and its diameter? Write the result as a real number rounded to 2 decimal places.
9. Base Base of building is circle with diameter 25 m. Calculate the circumference of a circular trench witch diameter is 41 cm wider than the diameter of the base.
10. Coin How many 50-cent coins must be put in a row that next 50-cent coins after them (above) rolled on it axis?
11. Highway repair The highway repair was planned for 15 days. However, it was reduced by 30%. How many days did the repair of the highway last?
12. Circle What is the radius of the circle whose perimeter is 6 cm?
13. Circle - simple Calculate the area of a circle in dm2, if its circumference is 31.4 cm.
14. Thales Calculate the length of the Thales' circle described to right triangle with hypotenuse 18.4 cm.
15. Outer contact of circles Construct a circle k1 (S1; 1.5 cm), k2 (S2; 2 cm), and K3 (S3; 2.5 cm) so that they are always two outer contact. Calculate the perimeter of the triangle S1S2S3.
16. Area to perimeter Calculate circle circumference if its area is 254.34cm2
17. Linear system Solve this linear system (two linear equations with two unknowns): x+y =36 19x+22y=720