how will i calculate the area of a pentagon?

Answer 1

Depends as to whether you want to calculate the area of a regular pentagon or not.For a regular pentagon , area=1/2 * {perimeter} * { perpendicular from center to any side} . This formula applies to any "regular" polygon . in case of an ir-regular pentagon , divide it into 5 triangles, find the area of each & add. There's no other alternative as the triangles formed in case of a ir-regular pentagon are usually scalene triangles.......

Answer 2

Regular pentagon or equilateral Pentagon, with all sides equal is 5 x the area of any one of the triangles.

Other wise it is the sum of the areas of five different triangles.

Answer 3

divide the pentagon, by drawing one diagonal, into a quadrilateral and a triangle. calculate the area of the quadrilateral and the triangle and add the two to get the area of a pentagon.

Answer 4

A pentagon is made up of 5 isosceles triangles

Answer 5

A = a²/4 * √[25 + 10 * √(5)]
Where a is the length of one of the sides.

Answer 6

a pentagon is made of several equal triangles, compute the area of 1 triangle and multiply.

Answer 7

if A,B,C,D,E are successive vertices of a pentagon,join AC and AD . find the area of triangle ABC,ACD,ADE and add them which will equal the area of pentagon

Answer 8

A Five sided figure is called pentagan.To calculate the area in pentagon.u can divided the area into three triangle and find thier areas,then add them togeather.area of triangle is Sqrt{s(s-a)(s-b)(s-c)}.
http://mathforum.org/library/drmath/view/54791.html

Answer 9

first of all the area depends on wat pentagon is considered
With the simple case regular pentagon cut it down into parts and calculate

Answer 10

divide pentagoan in triangles and sum the all 5 triangle