# Inscribed rectangle

What is the perimeter of a rectangle that is inscribed in a circle whose diameter is 5 dm long?
Answer: 14 dm

Result

p =  12.761 dm

#### Solution: Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):

Showing 3 comments: Dr Math
not exact solution, because rectangle have two different size Nestor
The solution is ambiguous. Where does x = r/3 came from? Dr Math
the solution is ok, bud problem is wrongly formulated.  x = r/3 is assumed to be something calculated. The solution is picked only one from infinity many solutions. #### To solve this example are needed these knowledge from mathematics:

See also our right triangle calculator.

## Next similar examples:

1. Table The circumference of the rectangle table is 420 cm. Length to width ratio is 5:2 . Calculate table dimensions and dimensions reduced in the ratio 3:5
2. Playground Rectangular playground is fenced with 38 m long netting. Its width is 7 m. Calculate its length.
3. Rectangle The rectangle area is 182 dm2, its base is 14 dm. How long is the other side? Calculate its perimeter.
4. Circle What is the radius of the circle whose perimeter is 6 cm?
5. Circles Three circles of radius 95 cm 78 cm and 64 cm is mutually tangent. What is the perimeter of the triangle whose vertices are centers of the circles?
6. 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.
7. Bicycle wheel After driving 157 m bicycle wheel rotates 100 times. What is the radius of the wheel in cm?
8. Circle annulus There are 2 concentric circles in the figure. Chord of larger circle 10 cm long is tangent to the smaller circle. What are does annulus have?
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. Thales Calculate the length of the Thales' circle described to right triangle with hypotenuse 18.4 cm.
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. Parallelogram Calculate the missing side of a parallelogram, if you know the perimeter o and one side: a) o = 7.2 cm; b = 1.8 cm b) o = 5.4 cm; a = 1.9 cm
14. Chord It is given to a circle k(r=6 cm) and the points A, B such that / AB / = 8 cm lies on k. Calculate the distance of the center of circle S to the midpoint C of the segment AB.
15. Expression Solve for a specified variable: P=a+4b+3c, for a
16. Holidays - on pool Children's tickets to the swimming pool stands x € for an adult is € 2 more expensive. There was m children in the swimming pool and adults three times less. How many euros make treasurer for pool entry?
17. Simplify Simplify the following problem and express as a decimal: 5.68-[5-(2.69+5.65-3.89) /0.5]