# Circle r,D

Calculate the diameter and radius of the circle if it has length 52.45 cm.

Result

r =  8.348 cm
D =  16.695 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. Circle - simple
Calculate the area of a circle in dm2, if its circumference is 31.4 cm.
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. 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?
4. 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?
5. 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.
6. Circle - simple
The circumference of a circle is 930 mm. How long in mm is its diameter?
7. Wheel diameter
A 1m diameter wheel rolled along a 100m long track. How many times did it turn?
8. 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?
9. Circle
What is the radius of the circle whose perimeter is 6 cm?
10. Bicycle wheel
After driving 157 m bicycle wheel rotates 100 times. What is the radius of the wheel in cm?
11. 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?
12. Clock hands
The second hand has a length of 1.5 cm. How long does the endpoint of this hand travel in one day?
13. Percents - easy
How many percent is 432 out of 434?
14. Apples 2
James has 13 apples. He has 30 percent more apples than Sam. How many apples has Sam?
15. Class
In a class are 32 pupils. Of these are 8 boys. What percentage of girls are in the class?
16. MO 2016 Numerical axis
Cat's school use a special numerical axis. The distance between the numbers 1 and 2 is 1 cm, the distance between the numbers 2 and 3 is 3 cm, between the numbers 3 and 4 is 5 cm and so on, the distance between the next pair of natural numbers is always in
17. Gloves
I have a box with two hundred pieces of gloves in total, split into ten parcels of twenty pieces, and I sell three parcels. What percent of the total amount I sold?