TEZA - CLASA 7 -S1
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12 QuestionsShow answers
• Question 1
900 seconds
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Q.

Rezultatul calculului  $\sqrt{144}+\sqrt{81}$  este ...

answer choices

20

21

19

22

• Question 2
900 seconds
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Q.

Rezultatul calculului  $5\sqrt{14}-3\sqrt{2}\times2\sqrt{7}$  este...

answer choices

$2\sqrt{14}$

$-\sqrt{14}$

$\sqrt{12}$

$\sqrt{14}$

• Question 3
900 seconds
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Q.

Aria unui dreptunghi cu dimensiunile de 15 cm si 8 cm este egala cu ...... cm

answer choices

115

130

120

100

• Question 4
900 seconds
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Q.

Un trapez cu inaltimea de 8 cm si semisuma bazelor de 12 cm are aria egala cu .......cm

answer choices

96

98

94

100

• Question 5
900 seconds
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Q.

Dintre numerele  $2\sqrt{3}\$  si  $3\sqrt{2}\$  , mai mare este ....

answer choices

numerele sunt egale

$3\sqrt{2}$

$2\sqrt{3}$

• Question 6
900 seconds
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Q.

Aria unui triunghi dreptunghic cu catetele de 6 cm, respectiv 8 cm, este de ......cm

answer choices

48

20

24

12

• Question 7
900 seconds
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Q.

Fie numerele $a=3\sqrt{2}\ \left(4+\sqrt{2}\right)-2\left(\sqrt{72}-4\right)$  si
$b=\left(\frac{3}{\sqrt{2}}+\frac{9}{\sqrt{32}}-\frac{\sqrt{49}}{\sqrt{8}}+\frac{25}{\sqrt{2}}\right):\left(\sqrt{\frac{25}{2}}-\frac{7}{\sqrt{8}}\right)$   Media aritmetica a numerelor a si b este .....

answer choices

14

11

$\frac{191}{12}$

$\frac{107}{6}$

• Question 8
900 seconds
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Q.

Un romb ABCD are latura AB=50 cm, iar diagonalele BD=60 cm si AC=80 cm. Aria rombului este de ......cm

answer choices

1200

2400

2000

4800

• Question 9
900 seconds
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Q.

Un romb ABCD are latura AB=50 cm, iar diagonalele BD=60 cm si AC=80 cm. Distanta de la un varf la o latura este de .....cm

answer choices

48

50

40

44

• Question 10
900 seconds
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Q.

Aratati ca numarul $a=\sqrt{10^2-6^2}+\sqrt{14+7\sqrt{25}}-10\times\sqrt{0,64}\ +\left|3\sqrt{2}-5\right|+\sqrt{18}$  este numar intreg

answer choices

a=11

a=12

a=10

a=3

• Question 11
900 seconds
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Q.

In figura 1, avem o gradina in forma de patrat ABCD, de latura 28 m in interiorul careia se afla un bazin cu apa in forma de triunghi CMN, unde M $\in$  (AB) si N  $\in$  (AD), astfel incat AM=DN=12 m. Suprafata bazinului este de ....... $m^2$

answer choices

290

300

296

298

• Question 12
900 seconds
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Q.

In figura 1, avem o gradina in forma de patrat ABCD, de latura 28 m in interiorul careia se afla un bazin cu apa in forma de triunghi CMN, unde M $\in$  (AB) si N  $\in$  (AD), astfel incat AM=DN=12 m. Daca MN=20 m, distanta de la punctul A la dreapta MN este de .....m

answer choices

9,2

9,4

9,6

9,8

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