A right-angled triangle has a hypotenuse of length 2 + √2 and one other side of length 1+√2. Find the length of the third side and the area, expressing each answer as a surd in its simplest form.

Answer:
2.4 units
Step-by-step explanation:
r^2=x^2 + y^2 ....(theorem of Pythagoras)
(2+√2)^2=(1+√2)^2 + x^2
6+4√2=(3+2√2)+x^2
6+4√2-3-2√2=x^2
√3+2√2=√x^2
2.4 units = x