# maths

posted by .

a regular dodecagon has a side lenght of 5.6cm find the side lenght of a regular octagon that has the same perimeter?

• maths -

P = 12 * 5.6 = 67.2 cm. = Perimeter.

P = 8Ls = 67.2,
Ls = 8.4 cm. = Length of each side.

## Similar Questions

1. ### Math--Area

Find the area of each regular polygon to the nearest tenth. Octagon with side length of 10 kilometers. Heres what I tried; but I don't know if im on the right track. Area=1/2 * Perimeter* Apothem Perimeter=base of octagon* number of …
2. ### algebra

the perimeter of a triangle is 53 inches.the second side is 3 inches longer that the first side the third side is 1.5 times the lenght of the second side. what is the lenght of each side
3. ### geometry

How do you find the perimeter of a regular dodecagon whose side is 12cm
4. ### jfk high school

if one side of a regular octagon is represented by 2x-1, the perimeter of the octagon can be represented by what?
5. ### Math

The perimeter of a regular pentagon is 35in. What is the lenght of one side of the pentagon?
6. ### math

The perimeter of a regular octagon is p. write an expression that represents the length of one side of the octagon?
7. ### statistics

What is your conclusion based on the following data?
8. ### math

The apothem of a regular polygon is the distance from the center to any side. If the length of the apothem remains constant at 10 inches, the formula for the perimeter of a regular polygon as a function of the number of sides is ( …
9. ### Maths (Proof)

An octagon is formed by joining the points (7,0), (5,5), (0,7), (-5,5), (-7,0), (-5,-5), (0,-7), (5,-5) and (7,0). The octagon is regular. I have used proof by exhaustion and got that all sides are square root of 29. Then sketched …
10. ### Solid Geometry

Find the Lateral area in cm square of the following right pryramid. 1. Base is regular octagon of side 20cm and altitude of 20cm. 2. Base is regular hexagon of side 20cm and altitude of 30cm. 3. Base is regular hexagon of side 30cm …

More Similar Questions