Question

A side of a regular polygon is 3.5 cm in length. the perimeter of the polygon is 17.5cm. how many sides does the polygon have?​

Answer 1

Answer:

The number of sides are 5.

Step-by-step explanation:

Given :

Side = 3.5 cm

Perimeter = 17.5 cm

To find :

The number of sides it has

Solution :

A polygon is a plane figure that has finite number of straight line segments connected to form a closed polygonal circuit.

Let the side be y

Perimeter of any shape is the sum of all its sides.

⇒ 3.5 × y = 17.5

⇒ 3.5y = 17.5

⇒ y = 17.5/3.5

⇒ y = 5

Number of side = 5 sides

Therefore, the number of sides are 5.

Answer 2

you can Slove this question very simply using a single formula

No. of sides = perimeter of the polygon / side of the polygon

= 17.5 / 3.5

= 5 sides

so the polygon consists of 5 sides i.e. Pentagon

Pentagon is a 5 sided figure.