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b=4cm
d=√10²+4²=√100+16=√116=2√29cm
½d=√29
c=13cm
H=wysokosc bryły
H=√13²-(√29)²=√169-29=√140=2√35cm
a = 10 cm
b = 4 cm
c = 13 cm
x² = (10 cm)² + (4 cm)² = 100 cm² + 16 cm² = 116 cm²
x = 2√29 cm
(x/2) = √29 cm
h² = c² - (x/2)² = (13 cm)² - (√29 cm)² = 169 cm² - 29 cm²= 140 cm²
h = 2√35 cm
Odp. Wysokość tego ostrosłupa jest równa 2 √35 cm.