teza cls.a VII-a / semI | Mathematics

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teza cls.a VII-a / semI

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7th grade

Mathematics

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a year ago

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Question 1
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Q.
Rezultatul calculului este $\sqrt{36}+\sqrt{144}$
answer choices
75
20
$\sqrt{180}$
18
75
alternatives
20
 <math><semantics><mrow><msqrt><mn>180</mn></msqrt></mrow><annotation encoding="application/x-tex">\sqrt{180}</annotation></semantics></math>180<svg width="400em" height="1.08em" viewBox="0 0 400000 1080" preserveAspectRatio="xMinYMin slice"><path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z"></path></svg> 
18
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Question 2
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Q.
Aria unui pătrat cu perimetrul de 24 cm este egală cu:
answer choices
12 $cm^2$
36 $cm^2$
96 $m^2$
6 $cm^2$
12 <math><semantics><mrow><mi>c</mi><msup><mi>m</mi><mn>2</mn></msup></mrow><annotation encoding="application/x-tex">cm^2</annotation></semantics></math>cm2 
alternatives
36 <math><semantics><mrow><mi>c</mi><msup><mi>m</mi><mn>2</mn></msup></mrow><annotation encoding="application/x-tex">cm^2</annotation></semantics></math>cm2 
96 <math><semantics><mrow><msup><mi>m</mi><mn>2</mn></msup></mrow><annotation encoding="application/x-tex">m^2</annotation></semantics></math>m2 
6 <math><semantics><mrow><mi>c</mi><msup><mi>m</mi><mn>2</mn></msup></mrow><annotation encoding="application/x-tex">cm^2</annotation></semantics></math>cm2 
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Question 3
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Q.
Un paralelogram ABCD are m( $\angle$ A)= 70 $\degree$ . Atunci m( $\angle$ B) este:
answer choices
70 $\degree$
110 $\degree$
80 $\degree$
40 $\degree$
70 <math><semantics><mrow><mi mathvariant="normal">°</mi></mrow><annotation encoding="application/x-tex">\degree</annotation></semantics></math>° 
alternatives
110 <math><semantics><mrow><mi mathvariant="normal">°</mi></mrow><annotation encoding="application/x-tex">\degree</annotation></semantics></math>° 
80 <math><semantics><mrow><mi mathvariant="normal">°</mi></mrow><annotation encoding="application/x-tex">\degree</annotation></semantics></math>° 
40 <math><semantics><mrow><mi mathvariant="normal">°</mi></mrow><annotation encoding="application/x-tex">\degree</annotation></semantics></math>° 
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Question 4
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Q.
Aria rombului ABCD cu diagonalele AC=12 cm si BD = 8 cm este
answer choices
8 cm²
48 cm²
12 cm²
10 cm²
8 cm2
alternatives
48 cm2
12 cm2
10 cm2
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Question 5
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Q.
Fie dreptunghiul ABCD cu lungimea egală cu dublul lăţimii. Dacă lungimea este de 48 cm , atunci perimetrul dreptunghiului are valoarea de
answer choices
144 cm
96 cm
128 cm
192 cm
144 cm
alternatives
96 cm
128 cm
192 cm
answer explanation
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Question 6
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Q.
Fie paralelogramul ABCD din figură cu DE=10cm , AB=16cm și m(∡A)=30⁰ , aria acestuia este de
answer choices
80 cm²
160 cm²
46 cm²
80 cm2
alternatives
160 cm2
46 cm2
answer explanation
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Question 7
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Q.
Rezolvând corect √36 : √9 +√9 ⋅√16 se obține rezultatul
answer choices
14
25
15
30
14
alternatives
25
15
30
answer explanation
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Question 8
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Q.
Descompuneți în factori primi și scoateți factorii de sub radical √180 :
answer choices
3√10
6√10
6√6
6√5
3√10
alternatives
6√10
6√6
6√5
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Question 9
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Q.
Dintre $-\sqrt{2}$ şi $-\sqrt{5}$ mai mare este ...
answer choices
$-\sqrt{2}$
$-\sqrt{5}$
0
-1
 <math><semantics><mrow><mo>−</mo><msqrt><mn>2</mn></msqrt></mrow><annotation encoding="application/x-tex">-\sqrt{2}</annotation></semantics></math>−2<svg width="400em" height="1.08em" viewBox="0 0 400000 1080" preserveAspectRatio="xMinYMin slice"><path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z"></path></svg> 
alternatives
 <math><semantics><mrow><mo>−</mo><msqrt><mn>5</mn></msqrt></mrow><annotation encoding="application/x-tex">-\sqrt{5}</annotation></semantics></math>−5<svg width="400em" height="1.08em" viewBox="0 0 400000 1080" preserveAspectRatio="xMinYMin slice"><path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z"></path></svg> 
0
-1
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Question 10
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Q.
Raţionalizaţi : $\frac{4}{\sqrt{2}}$
answer choices
$2\sqrt{2}$
$\sqrt{2}$
2
$4\sqrt{2}$
 <math><semantics><mrow><mn>2</mn><msqrt><mn>2</mn></msqrt></mrow><annotation encoding="application/x-tex">2\sqrt{2}</annotation></semantics></math>22<svg width="400em" height="1.08em" viewBox="0 0 400000 1080" preserveAspectRatio="xMinYMin slice"><path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z"></path></svg> 
alternatives
 <math><semantics><mrow><msqrt><mn>2</mn></msqrt></mrow><annotation encoding="application/x-tex">\sqrt{2}</annotation></semantics></math>2<svg width="400em" height="1.08em" viewBox="0 0 400000 1080" preserveAspectRatio="xMinYMin slice"><path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z"></path></svg> 
2
 <math><semantics><mrow><mn>4</mn><msqrt><mn>2</mn></msqrt></mrow><annotation encoding="application/x-tex">4\sqrt{2}</annotation></semantics></math>42<svg width="400em" height="1.08em" viewBox="0 0 400000 1080" preserveAspectRatio="xMinYMin slice"><path d="M95,702c-2.7,0,-7.17,-2.7,-13.5,-8c-5.8,-5.3,-9.5, -10,-9.5,-14c0,-2,0.3,-3.3,1,-4c1.3,-2.7,23.83,-20.7,67.5,-54c44.2,-33.3,65.8, -50.3,66.5,-51c1.3,-1.3,3,-2,5,-2c4.7,0,8.7,3.3,12,10s173,378,173,378c0.7,0, 35.3,-71,104,-213c68.7,-142,137.5,-285,206.5,-429c69,-144,104.5,-217.7,106.5, -221c5.3,-9.3,12,-14,20,-14H400000v40H845.2724s-225.272,467,-225.272,467 s-235,486,-235,486c-2.7,4.7,-9,7,-19,7c-6,0,-10,-1,-12,-3s-194,-422,-194,-422 s-65,47,-65,47z M834 80H400000v40H845z"></path></svg> 
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Question 11
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Q.
Un trapez isoscel ABCD are unghiul A = 60º şi baza mică CD = 8 cm, iar latura oblică de 6 cm. Baza mare AB are ... cm.
answer choices
14 cm
10 cm
12 cm
16 cm
14 cm 
alternatives
10 cm
12 cm
16 cm
answer explanation
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Question 12
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Q.
Rezultatul este
answer choices
9
3
27
8
9
alternatives
3
27
8
answer explanation
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Question 13
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Q.
Trapezul dreptunghic ABCD are AB || CD, m(∢A) = 90° , m(∢B) = 45°, AB = 24 cm și CD = 12cm. Alegeți enunțurile adevărate.

answer choices
m(∢BCD) = 135°
AD = 12 cm
A_ABCD= 216 cm ²
P_ABCD= 48 cm
m(∢BCD) = 135°
alternatives
AD = 12 cm
AABCD = 216 cm 2
PABCD = 48 cm
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Question 14
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Q.
Un dreptunghi ABCD, cu AB=10 cm si BC = 8 cm are aria egală cu
answer choices
80 cm²
18 cm²
15 cm²
30 cm
80 cm2
alternatives
18 cm2
15 cm2
30 cm
answer explanation
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