Odpowiedź:
7^2 = h^2 + √7 ^2
49 = h^2 + 7
h^2 = 42
h = √42
8^2 = a^2 + √42^2
64 = a^2 + 42
a^2 = 22
a = √22
c^2 = (3√2)^2 + (7+5)^2
c^2 = 18 + 144
c^2 = 162
c = 9√2
9√2 - 3,8√2 = 5,2√2
b = 5,2√2