130 What! How about one tenth of its perimeter?
It is: 58/10 = 5.8 units of length
Regular = all sides equal so all sides of 25 cm. Decagon = 10 sides. So perimeter = 10*25cm = 250 cm.
measure the perimeter then measure from the EXACT center to a side multiply this only works on regular decagons!
The formula for the perimeter of ANY regular pentagon isPerimeter = 5 x (length of one side)
If it's a regular decagon then its perimeter is 10*25 = 250 cm
100 cm
62
Add together the 10 sides
130 What! How about one tenth of its perimeter?
3.2 X 10 = 32cm
A decagon has 10 sides, therefore, with side length 13.5 centimetres, the perimeter would be 13.5 x 10 = 135 centimetres.
It is: 58/10 = 5.8 units of length
Regular = all sides equal so all sides of 25 cm. Decagon = 10 sides. So perimeter = 10*25cm = 250 cm.
Area of a regular polygon equals to the one half of the product of its perimeter with the apothem. So we have: A = (1/2)(a)(P) Since our polygon has 10 sides each with length 1.2, the perimeter is 12 910 x 1.2). Substitute 12 for the perimeter, and 1.85 for the apothem in the area formula: A = (1/2)(a)(P) A = (1/2)(1.85)(12) A = 11.1 Thus, the area of the decagon is 11.1.
A decagon has 10 sides. If it is a regular decagon, all of the sides are the same length. Each side would be 0.8 yards or 2.4 feet in length.
8 yds * * * * * That is simply nonsense. In a regular decagon, each of the 10 sides is of the same length. So the length of each side is 22/10 = 2.2 feet.