Question 319429
length be x
width = 2x-4
..
Area =177 cm^2
x(2x-4)=177
2x^2-4x-177=0
roots of the equation x1 x2 are
x1= -(-4)+sqrt(16+4*2*177) / 2*2
x1=10.46
x2= -(-4)-sqrt(16+4*2*177) / 2*2
x2=-8.46

..
length = 10.46cm
width = 16.92cm