answersLogoWhite

0

One method is by only knowing the length of each side and the number of sides.

This applies to all regular polygons.

In the case of your pentagon the number of sides are of course are 5.

The general formula for this method is as follows:

A = 1/4 x n x l^2 x cot 180/n

where

A = area

1/4 = constant (=0.25)

l^2 = length of side squared (length must be known)

cot = cotangent

180/n = 180 degrees divided by number of sides (for pentagon it is 36 degrees)

User Avatar

Wiki User

15y ago

What else can I help you with?

Related Questions

What is the area of a regular pentagon with a radius of 7?

The area of a regular pentagon with a radius of 7 is 10.1716. If the radius was 5, the area would be 7.26543.


What is the area of a 6 cm pentagon?

If 6 is the side of a regular pentagon, the area is 61.937


The apothem of a regular pentagon is 10.8 centimeters. What is the length of a side of the pentagon?

regular pentagon area of 12 000 m2 and an apothem of 40 m regular pentagon area of 12 000 m2 and an apothem of 40 m need to figure it out from area 12000 m2


What is area of pentagon?

That depends on the size of the pentagon, and whether it is regular or not. In general, you can divide the pentagon into three triangles, and calculate the area of each triangle separately.


How can you find the area of a pentagon with a base height and a length?

To find the area of a pentagon when you have a base height and a length, you can divide the pentagon into simpler shapes, such as triangles and rectangles. If you know the base length and the height from the base to the top vertex, you can use the formula for the area of the pentagon: Area = (Perimeter × Apothem) / 2, or apply the formula for the area of individual shapes you've divided it into. If the pentagon is regular, you can also use the formula for the area of a regular pentagon: Area = (1/2) × Perimeter × Apothem.


Area of a regular pentagon with a radius of 3 cm?

21.4


What is the area of a regular pentagon with side length of 9.4 feet and an another length of 6.5 feet?

What is the area of a regular pentagon with side length of 9.4 feet and an apothem length of 6.5 feet


What is the area of the regular pentagon with a length of 16 feet?

Area = 440.44 sq feet


What is the area of a regular pentagon with a side length of ten units?

A regular pentagon has five (5) equilateral triangles within it. Find the area of each triangle (1/2bh where b is the base of the triangle or the length of a side of the pentagon, and h is the height of the triangle or the apothem of the pentagon) and multiply the area of the triangle times five (5).


Find the exterior of a regular pentagon?

the exterior of a regular pentagon is? the exterior of a regular pentagon is?


The area of a regular pentagon can be found by breaking the pentagon into five congruent triangles and then taking the sum of their areas?

True


The shapes on a soccer ball include a regular pentagon with an apothem of 3.5 cm. What is the area of the regular pentagon Round to the nearest whole number?

45 cm