
Geometria - Arii, cl.9
Authored by Raisa Mardici
Mathematics
9th Grade
Used 2+ times

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11 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
1.Calculați aria unui dreptunghi cu laturile de 7 cm și 12 cm.
19 cm
5 cm
84 cm2
193 cm2
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
2. Aria discului este egală cu 81π cm2. Determinați lungimea diametrului cercului.
9π cm
18π cm
18 cm
81 cm
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
3. Calculați aria unui pătrat cu perimetrul de 44 m:
121 m2
22 m2
11 cm2
44 cm2
4.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
4. Calculați aria unui triunghi dreptunghic, a cărui ipotenuză este de 25 cm și una din catete
de 7 cm.
175 cm2
126 cm2
32 cm2
84 cm2
5.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
5.Calculați aria unui romb cu perimetrul de 52 cm și una din diagonale de 24 cm.
76 cm2
37 cm2
1280 cm2
120 cm2
6.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
6. Calculați aria unui paralelogram cu o latură de 6 cm și înălțimea corespunzătoare ei de 4 cm
20 cm2
24 cm2
12 cm2
52 cm2
7.
MULTIPLE SELECT QUESTION
5 mins • 1 pt
7. Fie triunghiul ABC cu laturile AB = 26 cm, BC = 28 cm,
AC = 30 cm. Calculați aria triunghiului ABC (utilizați formula lui Herone).
336 cm2
84 cm2
18 cm2
1512 cm2
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