Odpowiedź:
zad 3
a)
x² = 7² - 6² = 49 - 36 = 13
x = √13
b)
c² = 6² cm² + 5² cm² = 36 cm² + 25 cm² = 61 cm²
c = √61 cm
c)
b² = 5² - (√11)² = 25 - 11 = 14
b = √14
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Odpowiedź:
zad 3
a)
x² = 7² - 6² = 49 - 36 = 13
x = √13
b)
c² = 6² cm² + 5² cm² = 36 cm² + 25 cm² = 61 cm²
c = √61 cm
c)
b² = 5² - (√11)² = 25 - 11 = 14
b = √14