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14.3 Aire disque

Authored by Jonathan Lepage

Mathematics

8th - 9th Grade

Used 60+ times

14.3 Aire disque
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8 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

La surface grise se nomme?

cercle

ovale

disque

sphère

rondelle

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Quelle est la formule de l'aire d'un disque?

A = π ⋅ r2

A = π ⋅ d2

A = π ⋅ c2

A = 2 ⋅ π ⋅ r2

A = π⋅r⋅2

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Media Image

Calcule l'aire de ce disque.

8 cm2

50,26 cm2

25,13 cm2

157,91 cm2

4.

MULTIPLE CHOICE QUESTION

0 sec • 1 pt

Calcule l'aire d'un disque dont le diamètre est de 7,9 hm.

196,07 hm2

49,02 hm2

49,64 hm2

24,82 hm2

153,99 hm2

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Calcule l'aire d'un disque dont le diamètre mesure 22 cm.

380,13 cm²

190,07 cm²

95,03 cm²

34,56 cm²

1194,22 cm2

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Calcule l'aire d'un disque dont sa circonférence est de 78,54 cm.

5 cm2

39,27 cm2

490,87 cm2

12,5 cm2

78,54 cm2

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Si l'aire d'un disque est de 78,5398 cm2, quelle est la circonférence du cercle associé ?

5,0 cm

157,0 cm

25,0 cm

31,4 cm

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