# Saw

Imagine that the saw blade with diameter 40 cm has one tooth colored with a different color.

How long is path describing by the tip of the tooth after 15 minutes, if the blade is rotated 13365 times?

Result

s =  16795 m

#### Solution:

$s = n \pi D = 13365 \cdot \pi \cdot \dfrac{ 40}{100} = 16795 \ \text{m}$

Our examples were largely sent or created by pupils and students themselves. Therefore, we would be pleased if you could send us any errors you found, spelling mistakes, or rephasing the example. Thank you!

Leave us a comment of this math problem and its solution (i.e. if it is still somewhat unclear...):

Be the first to comment!

## Next similar math problems:

1. Equator
Suppose that tourist went on foot over the Globe equator. How many meters more track made ​​his hat on his head as the shoes on your feet? The radius of the earth is 6378 km and height of the tourist is 1.7 m.
2. 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?
3. 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?
4. Two circles
Two circles with a radius 4 cm and 3 cm have a center distance 0.5cm. How many common points have these circles?
5. Mine
Wheel in traction tower has a diameter 4 m. How many meters will perform an elevator cabin if wheel rotates in the same direction 89 times?
6. Circle r,D
Calculate the diameter and radius of the circle if it has length 52.45 cm.
7. Velocipede
The front wheel of velocipede from year 1880 had a diameter 1.8 m. If the front wheel turned again one then rear wheel 6 times. What was the diameter of the rear wheel?
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. Wheel diameter
A 1m diameter wheel rolled along a 100m long track. How many times did it turn?
10. Circle - simple
The circumference of a circle is 930 mm. How long in mm is its diameter?
11. Circle
What is the radius of the circle whose perimeter is 6 cm?
12. Circle - simple
Calculate the area of a circle in dm2, if its circumference is 31.4 cm.
13. Find the
Find the radius of the circular base of the vessel, whose perimeter is 2.51 m. Write the result to one decimal place in meters. Via the π sign - Ludolph's number
14. Clock hands
The second hand has a length of 1.5 cm. How long does the endpoint of this hand travel in one day?
15. Factory
In the factory workers work in three shifts. In the first inning operates half of all employees in the second inning and a third in the third inning 200 employees. How many employees work at the factory?
16. The square
The square root of 25 times the square root of 81 is what number?
17. Sick
Sick Marcel already taken six tablets, which was a quarter of the total number of pills in the pack. How many pills were in the pack?