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# What Shape has 5 Sides and 5 Vertices?

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The answer to the question “what shape has 5 sides and 5 vertices” is shown below: In the Geometry, a type of Polygon which has 5 sides and 5 vertices is known as pentagon. Now here we will see some properties of pentagon:

Interior angle - 108 degree is the interior angle of a pentagon. Now the formula for finding the interior angle of a pentagon:

The formula for finding the interior angle is:

Interior angle = (180n – 360)/n,

Where, the value of ‘n’ is the number of sides in a pentagon. So the number of sides in a pentagon is 5; because pentagon has five sides and five vertices.

Exterior angle – 72 degree is the exterior angle of a pentagon. A linear pair is formed with the interior angle of a pentagon. The formula for finding the exterior angles of a pentagon is:

Exterior angle = (180 – interior angle),

Area – 1.72 s2 approximately is the area of a pentagon,

Where‘s’ represents the length of a side, now we find the area of a pentagon when length of side is given:

Area = s2N,

4tan (180/N)

Where, ‘s’ represents the length of any side of a pentagon.

‘N’ is the number of sides in a pentagon.

‘Tan’ is used for finding the Tangent function.

When the radius of a pentagon is given then the formula for finding the area of a pentagon is:

Area = R2Nsin (360/N),

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