
Perimetre și arii
Authored by Octavia Vlaicu
Mathematics
7th Grade
Used 1+ times

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9 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perimetrul unui pătrat cu latura de 4 cm este:
12 cm
16 cm
20 cm
24 cm
Answer explanation
Perimetrul unui pătrat se calculează prin formula P = 4 * l, unde l este lungimea laturii. Așadar, pentru l = 4 cm, P = 4 * 4 = 16 cm. Răspunsul corect este 16 cm.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Aria unui dreptunghi cu L=6 cm și l=4 cm este:
30 cm
20 cm
10 cm
24 cm
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Aria unui triunghi cu baza de 5 cm și înălțimea de 8 cm este:
20 cm
30 cm
40 cm
25 cm
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perimetrul unui dreptunghi cu L=10 cm și l=5 cm este:
20 cm
50 cm
40 cm
30 cm
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Aria unui cerc cu raza de 3 cm este:
28.26 cm²
18.84 cm²
9.42 cm²
12.56 cm²
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Aria unui trapez cu baza mare de 10 cm, baza mică de 6 cm și înălțimea de 4 cm este:
40 cm²
24 cm²
28 cm²
32 cm²
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Perimetrul unui romb cu latura de 5 cm este:
20 cm
15 cm
30 cm
25 cm
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