Odpowiedź :
Odpowiedź:
1.
[tex]13 \times x = 52 \\ x = \frac{52}{13} = 4[/tex]
2.
[tex]9 \times 7 = 63cm[/tex]
3.
[tex]a = \sqrt{64} = 8cm \\l = 8 \times \: 4 = 32cm[/tex]
Odpowiedź:
1.
[tex]13 \times x = 52 \\ x = \frac{52}{13} = 4[/tex]
2.
[tex]9 \times 7 = 63cm[/tex]
3.
[tex]a = \sqrt{64} = 8cm \\l = 8 \times \: 4 = 32cm[/tex]