## Program to find area and perimeter of a square

**-Program:**

10 REM Program to find area and perimeter of a square in GW-BASIC (BASIC)

20 INPUT “Enter length of side: ” ; L

30 AREA = L*L

40 PERI = 4*L

50 PRINT “Area of square: ” ; AREA

60 PRINT “Perimeter of square: ” ; PERI

70 END

**-Algorithm:**

STEP 1 START

STEP 2 INPUT L

STEP 3 COMPUTE AREA = L*L

STEP 4 COMPUTE PERI = 4*L

STEP 5 PRINT AREA

STEP 6 PRINT PERI

STEP 7 END

**-Program & Output at GW-BASIC Emulator:**

Program & output

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