Corpuri rotunde

Corpuri rotunde

8th Grade

10 Qs

quiz-placeholder

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Corpuri rotunde

Corpuri rotunde

Assessment

Quiz

Mathematics

8th Grade

Practice Problem

Hard

Created by

Nicolae Popa

Used 11+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Aflati aria laterala a unui cilindru circular drept cu raza bazei de 5 cm şi genearatoarea de 8 cm

40π cm240\pi\ cm^2

80π cm280\pi\ cm^2

50π cm250\pi\ cm^2

120π cm2120\pi\ cm^2

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Generatoarea unui con circular drept face cu raza bazei un unghi de 300 . Dacă raza este de 6 cm atunci aria secțiunii axiale a conului este de

12√3 cm2

24√3 cm2

6√3 cm2

18√3 cm2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Aria totală a unui cilindru circular drept cu R = 5 cm şi G = 4 cm este egală cu :

48π cm2

100π cm2

80π cm2

90π cm2

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Aria totală a unui con circular drept cu

R = 3 cm şi G = 5 cm este egală cu :

48π cm2

32π cm2

24π cm2

18π cm2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Aria totală a unui trunchi de con circular drept cu R = 5 cm, r = 2 şi G = 5 cm este egală cu :

48π cm2

64π cm2

72π cm2

80π cm2

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Volumul unui cilindru circular drept cu

R = 5 cm şi G = 4 cm este egal cu :

48π cm2

120π cm2

80π cm2

100π cm2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Volumul unui con circular drept cu

R = 3 cm şi h = 4 cm este egal cu :

9π cm3

10π cm3

12π cm3

16π cm3

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