1. 4*6=24/2=12 2.8,5 * 2 =17/2=8,5
3. 13* 12=156/2=78 4. 10 *16=160/2=80
5. 40*25=1000/2=500 6. 31*11=341/2=170,5
Proszę chyba db :D
1 P=1/2a * h = 1/2 * 4 * 6= 12m2
2 1/2 * 8,5 * 2= 8,5 dm2
3 1/2 * 13cm* 12cm= 78 cm2
4 1/2* 10*16= 80 m2
5 1/2 * 40 * 25= 500 dm2
6 1/2 * 31 * 11= 170,5 m2
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1. 4*6=24/2=12 2.8,5 * 2 =17/2=8,5
3. 13* 12=156/2=78 4. 10 *16=160/2=80
5. 40*25=1000/2=500 6. 31*11=341/2=170,5
Proszę chyba db :D
1 P=1/2a * h = 1/2 * 4 * 6= 12m2
2 1/2 * 8,5 * 2= 8,5 dm2
3 1/2 * 13cm* 12cm= 78 cm2
4 1/2* 10*16= 80 m2
5 1/2 * 40 * 25= 500 dm2
6 1/2 * 31 * 11= 170,5 m2