calculo de areas

 https://drive.google.com/open?id=0B0N44UkgTG3GSDNXMVVSWGNSSEhttps%3A%2F%2Fdrive.google.com%2Fopen%3Fid%3D0B0N44UkgTG3GSDNXMVVSWGNSSEE

https://drive.google.com/open?id=0B0N44UkgTG3GdTdtMUZOT1YwRW8

https://drive.google.com/open?id=0B0N44UkgTG3GRDRTT1l0aUNac3M

https://drive.google.com/open?id=0B0N44UkgTG3GQ1BFbUZsd3U1dzA