Question 725286
AREA=S^2+(2S)^2
20=S^2+4S^2
20=5S^2
S^2=20/5
S^2=4
S=SQRT4
S=2 ANS. FOR THE SMALLER SIDE.
2*2=4 ANS. FOR THE LARGER SIDE.
PROOF:
20=2^2+4^2
20=4+16
20=20