Odpowiedź:
a) [tex]\frac{6cm * 8cm }{2}=\frac{48cm^{2} }{2} = 24cm^{2} \\[/tex]
b) [tex]\frac{12cm * 5cm}{2} = \frac{60cm^{2} }{2} = 30cm^{2}[/tex]
c) [tex]\frac{6cm*7cm}{2} = \frac{42cm^{2} }{2} = 21cm^{2}[/tex]
Szczegółowe wyjaśnienie:
* - razy
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Odpowiedź:
a) [tex]\frac{6cm * 8cm }{2}=\frac{48cm^{2} }{2} = 24cm^{2} \\[/tex]
b) [tex]\frac{12cm * 5cm}{2} = \frac{60cm^{2} }{2} = 30cm^{2}[/tex]
c) [tex]\frac{6cm*7cm}{2} = \frac{42cm^{2} }{2} = 21cm^{2}[/tex]
Szczegółowe wyjaśnienie:
* - razy
A) —— = ———- = 24cm
2 2
B) 12*5 60cm2
——- = ————- 30cm2
2 2
C) 6*7 42 cm2
—— = ———— = 21 cm
2 2