the percentage increase in the area of a rectangle , if each of its sides is increased by 20 % is ?
n0 = 20.0
t0 = n0 + 100.0
t1 = t0 / 100.0
t2 = t1 * t1
t3 = t2 - 1.0
answer = t3 * 100.0
print(answer)