Question

the perimeter of a decagon is 30 May determine the length of its side​

Answer 1

Answer:

Length of a Side is 3 m

Step-by-step explanation:

We know that,

For any closed of a given length of one of a side.

The perimeter of that Figure becomes equivalent to the Product of the Number of sides and length of one of the sides.

or Perimeter of Figure = Length of a Side \times× Number of Sides

Now, Applying above rule to the question,

Let 'x' m be the length of one of the sides of the Decagon.

The Perimeter of Decagon = 30 m

Number of Sides in a Decagon = 10

Hence,

The Perimeter of Decagon = Number of Sides \times× Length of Side

30 = 10 \times x30=10×x

⇒ x = \frac {30}{10}x=

10

30

⇒ x = 3

Hence, Length of its Side becomes 3 m

Length and Breadth of a Decagon are Equal.

Answer 2

Answer:

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A regular decagon is a ten-sided polygon whose all ten sides are equal in length.

Length of a regular decagon = 3.6

Perimeter of regular decagon = (10 x Length of each side)units

= (10 x 3.6)cm

= 36cm

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