Polygons by area

[sakeerp]

Hai,

if anybody knows about how to make a polygon(ex. pentagon - five side) by area
that means i need to make a pentagon 25sqm area. it is possible how please give me an answer.

Sakeer

EDIT: Moved to Autocad general ( assumed forum ? )

[paulmcz]

You need to find the radius of circumscribed circle:

r=sqrt(area/(5*sin54*cos54))

any other polygon:

r=sqrt(area/(n*sin(90-180/n)*cos(90-180/n))); where n=number of sides

Therefore, radius of the regular 5-sided polygon which has area 25 sqm = 3.242625825m