14.4 Aire secteur

Quiz
•
Mathematics
•
8th Grade
•
Medium
Jonathan Lepage
Used 39+ times
FREE Resource
12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Comment se nomme précisément la ligne noire qui fait le tour de la région grise ?
cercle
ovale
disque
sphère
rondelle
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Quelle est la formule de la circonférence ?
C = 2⋅π⋅r
C = π⋅d2
C = π⋅c2
C = 2⋅π⋅d
A = π⋅r2
3.
MULTIPLE CHOICE QUESTION
2 mins • 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
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Calcule l'aire d'un disque dont le rayon est de 3,95 hm.
196,07 hm2
49,02 hm2
49,64 hm2
24,82 hm2
153,99 hm2
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Détermine l'image qui représente le mieux le secteur d'un disque
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
À quoi correspond un secteur de 90° dans un disque?
Un demi disque
Le tiers d'un disque
Le quart d'un disque
Le dixième d'un disque
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Trouve la bonne proportion pour calculer l'aire d'un secteur
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