Calculation of land area Top length: 14.5m, bottom length: 15.5m, left length: 20m, right length: 18.2m, diagonal length: 25m What is the area of this land? How to calculate it?

Calculation of land area Top length: 14.5m, bottom length: 15.5m, left length: 20m, right length: 18.2m, diagonal length: 25m What is the area of this land? How to calculate it?

（14.5+18.2+25）=57.7 25+20+15.5=55.5
s=√57.7x（57.7-14.5）x（57.7-18.2)(57.7-25）+√55.5x(55.5-25)(55.5-20)(55.5-15.5)
=

Help me calculate the land area
It is 20 meters long and 10 meters wide

20 * 10 = 200 square meters
200 m2 = 0.3 Mu
Where is the conversion open.baidu.com

How to calculate the land area?

Mu is a unit of urban land area in China. One mu is equal to 60 square feet, about 666.67 square meters. Fifteen Mu is equal to one hectare (10000 square meters). 60 square feet is selected because of the counting method in ancient China