Odpowiedź:
[tex]\frac{h}{b} = \frac{9}{b} = sin 30^o = 0,5[/tex]
więc b = 18
================
x² + h² = b²
x² = 18² - 9² = 324 - 81 = 243 = 81*3
x = [tex]\sqrt{81*3} = 9\sqrt{3}[/tex]
zatem a =2 x = 18 [tex]\sqrt{3}[/tex]
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Odpowiedź:
[tex]\frac{h}{b} = \frac{9}{b} = sin 30^o = 0,5[/tex]
więc b = 18
================
x² + h² = b²
x² = 18² - 9² = 324 - 81 = 243 = 81*3
x = [tex]\sqrt{81*3} = 9\sqrt{3}[/tex]
zatem a =2 x = 18 [tex]\sqrt{3}[/tex]
=====================
Szczegółowe wyjaśnienie: