Calculate the perimeter of a regular nonagon (9-gon) inscribed in a circle with a radius 13 cm.
Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):
Showing 0 comments:
Be the first to comment!
To solve this example are needed these knowledge from mathematics:
Next similar examples:
Calculate the length of the Thales' circle described to right triangle with hypotenuse 18.4 cm.
- Hexagon A
Calculate area of regular hexagon inscribed in circle with radius r=9 cm.
- Hexagon 5
The distance of parallel sides of regular hexagonal is 61 cm. Calculate the length of the radius of the circle described to this hexagon.
- Height 2
Calculate the height of the equilateral triangle with side 38.
In ▵ ABC, if sin(α)=0.5 and sin(β)=0.6 calculate sin(γ)
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?
Wheel in traction tower has a diameter 2 m. How many meters will perform an elevator cabin if wheel rotates in the same direction 66 times?
What is the side length of the regular 5-gon inscribed in a circle of radius 12 cm?
- n-gon II
What is the side length of the regular 5-gon circumscribed circle of radius 11 cm?
- Inscribed triangle
To a circle is inscribed triangle so that the it's vertexes divide circle into 3 arcs. The length of the arcs are in the ratio 2:3:7. Determine the interior angles of a triangle.
- Equilateral triangle
How long should be the minimum radius of the circular plate to be cut equilateral triangle with side 7 mm from it?
- Cable car 2
Cable car rises at an angle 41° and connects the upper and lower station with an altitude difference of 1175 m. How long is the track of cable car?
- Theorem prove
We want to prove the sentense: If the natural number n is divisible by six, then n is divisible by three. From what assumption we started?
- Reference angle
Find the reference angle of each angle:
The longer leg of a 30°-60°-90° triangle measures 5. What is the length of the shorter leg?
Is true equality? ?
- Center traverse
It is true that the middle traverse bisects the triangle?