Recapitulare matematică clasa a VIIIa – semestrul I
Algebră și geometrie – semestrul I – clasa a VIIIa
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Question 1 of 10
1. Question
1 pointsDacă $MA\perp \left(ABC\right)$, AB=3 cm, BC= 5 cm, MA= 18 cm, atunci d(M, BC)=Correct
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Question 2 of 10
2. Question
1 points$Card\left\{x\in {\mathrm{\mathbb{Z}}}^{*}x\le \sqrt{101}\right\}=$Correct
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Question 3 of 10
3. Question
1 pointsPiramida regulată are fețele laterale triunghiuri dreptunghice. Alegeți varianta incorectă:Correct
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Question 4 of 10
4. Question
1 points$\sqrt{32\sqrt{2}}+\sqrt{64\sqrt{2}}={\left(\sqrt{2}\right)}^{x}.$ Atunci $\frac{x}{\sqrt{2}}=$Correct
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Question 5 of 10
5. Question
1 pointsDacă $a<b$, atunci $\left(\infty ,b\right)\cap [a,b+1)=$Correct
Incorrect

Question 6 of 10
6. Question
1 pointsNumărul $a=\frac{1}{\sqrt{3}2}+\frac{1}{\sqrt{3}+2}$ aparține intervalului:Correct
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Question 7 of 10
7. Question
1 points${\left(\sqrt{74\sqrt{3}}+\sqrt{7+4\sqrt{3}}\right)}^{2}=$Correct
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Question 8 of 10
8. Question
1 points$\sqrt{n\left(n+1\right)\left(n+2\right)\left(n+3\right)+1}=$Correct
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Question 9 of 10
9. Question
1 pointsVABCDEF piramidă hexagonală regulată, AB=10 cm, VA=20 cm. Atunci d(A, VD)=Correct
Incorrect

Question 10 of 10
10. Question
1 pointsABCDEFG cub, iar I este mijlocul lui [HG]. Atunci d(M, AB)=Correct
Incorrect
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Examples of questions from "Recapitulare matematică clasa a VIIIa – semestrul I"
 $\sqrt{32\sqrt{2}}+\sqrt{64\sqrt{2}}={\left(\sqrt{2}\right)}^{x}.$ Atunci $\frac{x}{\sqrt{2}}=$
 $Card\left\{x\in {\mathrm{\mathbb{Z}}}^{*}x\le \sqrt{101}\right\}=$
 Dacă $MA\perp \left(ABC\right)$, AB=3 cm, BC= 5 cm, MA= 18 cm, atunci d(M, BC)=