d = 10√2
a = 10
Pp = a² = 10² = 100
Pb = 160
160 = 4 * 0,5 * 10 * h
160 = 20h
h = 8
H² + (1/2a)² = h²
H² + 1/4a² = h²
H² + 1/4*10² = 8²
H² + 25 = 64
H² = 39
H = √39
V = 1/3 * Pp * H
V = 1/3 * 100 * √39
V = 33,(3)√39 [³]