際際滷

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Larea del trapezio
FAI CLIC PER TRASFORMARE IL TRAPEZIO
ABBIAMO DUPLICATO IL TRAPEZIO OTTENENDO UN ROMBOIDE
Il romboide 竪 formato da due trapeziformato da due trapezi, perci嘆 se
troviamo larea del romboide troviamo lala doppia areadoppia area
di un trapezio
8 cm
4 cm
3 cm
4 cm
8 cm
La base del romboide 竪 12 cm ed 竪 la somma delle due
basi del trapezio
Laltezza del romboide 竪 3 cm come laltezza del trapezio
8 cm
4 cm
3 cm
4 cm
8 cm
8 cm
4 cm
3 cm
4 cm
8 cm
AREA DEL ROMBOIDE = base x altezzabase x altezza
AREA DI 2 TRAPEZI = somma delle basi x altezzasomma delle basi x altezza
AREA DEL TRAPEZIO = (somma delle basi) x altezza : 2(somma delle basi) x altezza : 2
(8 + 4) x 3 : 2 = 18 cm(8 + 4) x 3 : 2 = 18 cm22
AREA DEL TRAPEZIO = (somma delle basi) x altezza : 2(somma delle basi) x altezza : 2
Larea 竪
10 cm 23 cm2
112 cm2
56 cm2
70 cm2
Calcola e scegli la misura esatta dellarea
6 cm
7 cm
Larea 竪
36 cm2
12 cm2
18 cm2
13 cm2
Calcola e scegli la misura esatta dellarea
6 cm
3 cm
4 cm
Larea 竪
26 cm2
36 cm2
30 cm2
13 cm2
Calcola e scegli la misura esatta dellarea
8cm4 cm
5 cm
FINE
ESCIESCI
皆狸
皆狸
皆狸
No
No
No

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Trapezio

  • 2. FAI CLIC PER TRASFORMARE IL TRAPEZIO ABBIAMO DUPLICATO IL TRAPEZIO OTTENENDO UN ROMBOIDE Il romboide 竪 formato da due trapeziformato da due trapezi, perci嘆 se troviamo larea del romboide troviamo lala doppia areadoppia area di un trapezio 8 cm 4 cm 3 cm 4 cm 8 cm
  • 3. La base del romboide 竪 12 cm ed 竪 la somma delle due basi del trapezio Laltezza del romboide 竪 3 cm come laltezza del trapezio 8 cm 4 cm 3 cm 4 cm 8 cm
  • 4. 8 cm 4 cm 3 cm 4 cm 8 cm AREA DEL ROMBOIDE = base x altezzabase x altezza AREA DI 2 TRAPEZI = somma delle basi x altezzasomma delle basi x altezza AREA DEL TRAPEZIO = (somma delle basi) x altezza : 2(somma delle basi) x altezza : 2 (8 + 4) x 3 : 2 = 18 cm(8 + 4) x 3 : 2 = 18 cm22
  • 5. AREA DEL TRAPEZIO = (somma delle basi) x altezza : 2(somma delle basi) x altezza : 2
  • 6. Larea 竪 10 cm 23 cm2 112 cm2 56 cm2 70 cm2 Calcola e scegli la misura esatta dellarea 6 cm 7 cm
  • 7. Larea 竪 36 cm2 12 cm2 18 cm2 13 cm2 Calcola e scegli la misura esatta dellarea 6 cm 3 cm 4 cm
  • 8. Larea 竪 26 cm2 36 cm2 30 cm2 13 cm2 Calcola e scegli la misura esatta dellarea 8cm4 cm 5 cm
  • 13. No
  • 14. No
  • 15. No