Matematica e...

SPAZIO E FIGURE
AREE E FORMULE
Collega ciascun poligono alla formula corretta e utilizzala per calcolare l’area.
A
AB = 9 m BC = 7 m
A = ______________________________ m2 9 x 7 = 63
A
D
D C
AB = 12 cm
A = ______________________________ cm2 12 x 12 = 144
C
C
B
B
l x l
(b x h) : 2
b x h
AB = 8 m CH = 9 m
A = ______________________________ m2 A
H
B
(8 x 9) : 2 = 36
AB = 11 cm DH = 6 cm
A = ______________________________ cm2 A H B
11 x 6 = 66
D C
AB = 10 cm CH = 7 cm
A = ______________________________ cm2 AB = 14 dm BC = 9 dm
A = ______________________________ dm2 A
H
B
A B
(10 x 7) : 2 = 35 14 x 9 = 126
D
C
C
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