Pentagon The area of a regular pentagon, if you know the length of a side (s), is: A = ( s2⁄4 ) √ 25 + 10 √ 5) or, approximately, 1.720477 s2 |
PentagonThe area of a regular pentagon, if you know the length of a side (s), is: A = ( s2⁄4 ) √ 25 + 10 √ 5) or, approximately, 1.720477 s2 |