Q BASIC PROGRAM TO FIND AREA OF BOX. FUNCTION

DECLARE FUNCTION AREA(L,B,H)
CLS
INPUT "ENTER LENGTH";L
INPUT "ENTER BREADTH";B
INPUT "ENTER HEIGHT";H
PRINT "AREA OF BOX";AREA(L,B,H)
END

FUNCTION AREA(L,B,H)
AREA = 2*(L*B+B*H+L*H)
END FUNCTION