Aria unei sfere se determină cu formula Dacă R= 3 cm , atunci aria este egală cu
Sfera-formule pentru arie şi volum

Quiz
•
Other, Other
•
8th Grade
•
Hard

Boldea Daniela
Used 4+ times
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21 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Volumul unei sfere se determină cu formula Dacă R= 3 cm , atunci volumul este egal cu
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Semisfera reprezintă o jumătate dintr-o sferă. Dacă raza unei semisfere este de 4 cm, atunci
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Semisfera reprezintă o jumătate dintr-o sferă. Dacă raza unei semisfere este de 4 cm, atunci
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
O sferă are aria egală cu . Raza sferei este egală cu
5 cm
25 cm
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Sfera cu raza de 2 cm are aria de:
16π cm2
8π cm2
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Un rezervor de apă dintr-o instalaţie specială de irigat destinată amestecului apei cu îngrăşăminte chimice este compus dintr-un cilindru circular cu generatoarea de 2 m şi la capete din două emisfere de R = 0,60 m.
Aria totală a rezervorului se determină astfel:
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