The length of the two equal sides of an isosceles right triangle is given. Estimate the length of the hypotenuse. Find bounds on the length of the hypotenuse such that they have at least one digit after the decimal point.

(i) 4
 
The bounds of the hypotenuse are
.
 
(ii) 8
 
The bounds of the hypotenuse are
.
Answer variants:
5.5<32<5.6
5.6<32<5.7
11.4<128<11.5
11.3<128<11.4