17. Qbasic program to find the area of four wall of a room

17.      Write a program in QBASIC to find the area of four wall of a room using FUNCTION…..END FUNCTION.

DECLARE FUNCTION AREA (L, B, H)

CLS

INPUT “ENTER LENGTH”; L

INPUT “ENTER BREADTH”; B

INPUT “ENTER HEIGHT”; H

PRINT “AREA OF FOUR WALLS”; AREA(L, B, H)

END

FUNCTION AREA (L, B, H)

A = 2 * H * (L + B)

AREA = A

END FUNCTION