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Calcul de la Base et Côtés des Trapèzes (A)

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(1)

Mesures de Trap`eze (A)

Calculez les mesures manquantes pour chaque trap`

eze.

1.

?

?

8 ,3 mm 31,5 mm 30,6 mm

P =

91,1 mm A = 429,93 mm2

2.

20 ,4 m

?

?

21,6 m 19,2 m

P =

83,9 m A = 390,72 m2

3.

?

20 ,3 cm 10,8 cm

?

18 ,9 cm

P =

63,7 cm A = 211,68 cm2

4.

?

3,6 km 4 km

?

P =

14,2 km A = 12,425 km2

5.

15 ,8 dam

?

?

36 dam 33,3 dam

P =

93,1 dam A = 381,285 dam2

6.

?

13 ,6 yd 11 yd

?

12 ,8 yd

P =

44,2 yd A = 108,8 yd2

MathsLibres.com

(2)

Mesures de Trap`eze (A) R´eponses

Calculez les mesures manquantes pour chaque trap`

eze.

1.

19 ,8 mm 31,5mm 8 ,3 mm 31,5 mm 30,6 mm

P =

91,1 mm A = 429,93 mm2

2.

20 ,4 m 21,6 m 20 ,3 m 21,6 m 19,2 m

P =

83,9 m A = 390,72 m2

3.

11,6 cm 20 ,3 cm 10,8 cm 21 cm 18 ,9 cm

P =

63,7 cm A = 211,68 cm2

4.

3,1 km 3,6 km 4 km 3 ,5 km

P =

14,2 km A = 12,425 km2

5.

15 ,8 dam 34,2 dam 7 ,1 dam 36 dam 33,3 dam

P =

93,1 dam A = 381,285 dam2

6.

6 yd 13 ,6 yd 11 yd 13 ,6 yd 12 ,8 yd

P =

44,2 yd A = 108,8 yd2

MathsLibres.com

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