Odpowiedź :
Szczegółowe wyjaśnienie:
a=4cm
c=6cm
b= ?
[tex] {c}^{2} = {a}^{2} + {b}^{2} \\ {b}^{2} = {c}^{2} - {a}^{2} \\ {b}^{2} = {6}^{2} - {4}^{2} = 36 - 16 = 20 \\b = \sqrt{20} = \sqrt{4 \times 5} = 2 \sqrt{5} [/tex]
Szczegółowe wyjaśnienie:
a=4cm
c=6cm
b= ?
[tex] {c}^{2} = {a}^{2} + {b}^{2} \\ {b}^{2} = {c}^{2} - {a}^{2} \\ {b}^{2} = {6}^{2} - {4}^{2} = 36 - 16 = 20 \\b = \sqrt{20} = \sqrt{4 \times 5} = 2 \sqrt{5} [/tex]