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d = 6√2 cm
d=a√2
a = 6cm
pole podstawy = 36 cm²
tg45 stopni = H/ 1/2d
H = 1/2d * tg 45 stopni
H = 6√2 cm /2 *1 = 3√2 cm
V = 1/3 *36cm² * 3√2 cm = 36√2 cm³
jak zrobisdz rysunek to bedziesz widziec skad ten tangens...jakby jednak nie wyszlo i nie bylo jasne to pisz. ;]