externalStorage.sol

[yuscopefly]

pragma solidity >=0.4.17 < 0.6.0;

contract ExternalStorage {

mapping(address => Rhombus) public Rhombus;

struct RhombusCalc {
    string Area;
    uint base;
    uint height 
 }

function RhombusCalc (unit base, unit height) public pure returns (unit area, unit rhombus){
	Area = base * height;
	hombus = (base * height)/2
	
}

}