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A<br />

PERIMETRI E FORMULE<br />

Collega con una freccia ciascun poligono alla formula corretta e utilizzala per calcolare il perimetro.<br />

C<br />

D C<br />

AB = 9,4 m BC = 6,2 m CA = 4,7 m<br />

P = 9,4+6,2+4,7=20,3 ____________________________m<br />

A<br />

AB = 3 cm BC = 4,6 cm<br />

P = (3+4,6) ______________________________<br />

x 2 = 15,2 cm<br />

D<br />

E<br />

D C<br />

B<br />

C<br />

(base + lato obliquo) x 2<br />

lato x 4<br />

lato + lato + lato<br />

lato x 5<br />

(base + altezza) x 2<br />

lato x 3<br />

A B A B<br />

AB = 2,9 m<br />

AB = 6,2 m BC = 3,6 m<br />

P = ______________________________<br />

2,9 x 5 = 14,5 m P = ______________________________<br />

(6,2+3,6) x 2 = 19,6 m<br />

B<br />

A<br />

B<br />

AB = 5 cm<br />

P = ______________________________<br />

5 x 4 = 20 cm<br />

AB = 4,9 m<br />

D C<br />

A B<br />

P = ______________________________<br />

4,9 x 3 = 14,7 m<br />

92 SPAZIO E FIGURE<br />

C

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