# Circle

What is the radius of the circle whose perimeter is 6 cm?

Result

r =  1 cm

#### 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. Bicycle wheel After driving 157 m bicycle wheel rotates 100 times. What is the radius of the wheel in cm?
2. 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?
3. 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.
4. Circle r,D Calculate the diameter and radius of the circle if it has length 52.45 cm.
5. Circle - easy 2 The circle has a radius 6 cm. Calculate:
6. Circle from string Martin has a long 628 mm string . He makes circle from it. Calculate the radius of the circle.
7. Athlete How long length run athlete when the track is circular shape of radius 120 meters and an athlete runs five times in the circuit?
8. Clock hands The second hand has a length of 1.5 cm. How long does the endpoint of this hand travel in one day?
9. 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?
10. Circle - simple The circumference of a circle is 930 mm. How long in mm is its diameter?
11. 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?
12. 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?
13. Bicycle wheel Bicycle wheel diameter is 62 cm. How many times turns the bicycle on the road 1 km long?
14. Tree trunk Calculate the average tree trunk with a circumference of 149 cm.
15. Circle - simple Calculate the area of a circle in dm2, if its circumference is 31.4 cm.
16. Clock How long is trajectory of second hand of hours for day, if is 15 mm long?
17. Cable Cable consists of 8 strands, each strand consists of 12 wires with diameter d = 0.5 mm. Calculate the cross-section of the cable.