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Lungimea cercului si aria discului

Authored by Stanciu Olga - Gabriela

Mathematics

KG - 3rd Grade

Used 14+ times

Lungimea cercului si aria discului
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8 questions

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1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Lungimea unui cerc de raza egala cu 6 cm este:

12π cm12\pi\ cm

8π cm8\pi\ cm

12 cm

8 cm

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Lungimea unui cerc de raza egala cu

 323\sqrt{2}  cm este:

 42  π cm4\sqrt{2\ }\ \pi\ cm  

 6π cm6\pi\ cm  

 62 π cm6\sqrt{2}\ \pi\ cm  

6 cm

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Aria unui disc de raza egala cu 8 cm este:

64 cm

16 cm

16πcm216\pi cm^2

64πcm264\pi cm^2

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Aria unui disc cu raza egala cu

 434\sqrt{3}  cm este:

 5πcm25\pi cm^2  

 36πcm236\pi cm^2  

 48πcm248\pi cm^2  

 7πcm27\pi cm^2  

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Raza cercului care are lungimea egala cu

 26πcm26\pi cm  este:

13 cm

10 cm

11 cm

12 cm

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Raza unui cerc de lungime egala cu

 43πcm4\sqrt{3}\pi cm  este:

2 cm

 23 cm2\sqrt{3}\ cm  

 3\sqrt{3}  cm

6 cm

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Raza discului care are aria egala cu

 49πcm249\pi cm^2  este:

7 cm

8 cm

4 cm

6 cm

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