Question

each side of polygon is 2.9 cm in length and its perimeter is 17.4 cm how many side does polygon have?
plz its urgent​

Answer 1

➣ Answer

• Total number of sides of the polygon = 6.

➣ Given

• Each side of polygon is 2.9 cm in length.

• Perimeter of the polygon = 17.4 cm.

➣ To Find

• Number of sides the polygon have.

➣ Step By Step Explanation

Given that each side of a polygon is 2.9 cm in length and the perimeter of polygon is 17.4 cm.

We need to find the total number of sides of the polygon.

So let's do it !!

➵ Assumption

Let us consider the total number of sides of polygon be x.

➵ Equation

If total number of sides of polygon is x.

Then equation will be ⤵

$\dag\underline{\boxed{\tt{\color{brown}{2.9 \times x = 17.4}}}}$

➵ Solution of equation

$\longmapsto\tt2.9 \times x = 17.4 \\ \\ \longmapsto\tt 2.9x=17.4\\\\\longmapsto\tt \: x=\cancel\cfrac{17.4}{2.9} \\ \\ \longmapsto\tt x = 6$

Therefore, total number of sides of a polygon = 6

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More to Know

• Regular polygon - A polygon in which all the sides and angles are equal is known as regular polygon.

• Polygon according to their number of sides -

1. Polygon with 3 sides is known as triangle.
2. Polygon with 4 sides is known as quadrilateral.
3. Polygon with 5 sides is known as pentagon.
4. Polygon with 6 sides is known as hexagon.
5. Polygon with 7 sides is known as heptagon.
6. Polygon with 8 sides is known as octagon.
7. Polygon with 9 sides is known as nonagon.
8. Polygon with 10 sides is known as decagon.

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Answer 2

Answer:

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