
Aria discului, lungimea cercului
Authored by Aliona Lascu
Mathematics
9th Grade
Used 43+ times

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7 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Lungimea cercului cu raza de 3 cm este
3 cm
6 cm
9 cm
1,5 cm
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Lungimea cercului cu diametrul de 5 cm este :
10 cm
5 cm
2,5 cm
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Care este raza unui cerc, știind că lungimea cercului este de 8 cm ?
( scrieți valoarea și nu uitați de unitatea de măsură)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Aflați aria discului cu raza de 4 cm
8
16
4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Care este lungimea diametrului unui disc, știind că aria lui este de 25
5 cm
5 cm
10 cm
10 cm
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Lugimea semicercului din desen este
5
10
5 cm
10 cm
7.
FILL IN THE BLANK QUESTION
3 mins • 1 pt
Determinați aria suprafeței verzi din desen ( utilizația valoarea lui = 3,14)
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