Q 8 7

Q 8 7

8th Grade

12 Qs

quiz-placeholder

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Q 8 7

Q 8 7

Assessment

Quiz

Mathematics

8th Grade

Practice Problem

Medium

Created by

anca maria

Used 16+ times

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12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 x=23(752108+243)x=2\sqrt{3}\left(\sqrt{75}-2\sqrt{108}+\sqrt{243}\right)  x=.....

 434\sqrt{3}  

12

 12312\sqrt{3}  

 636\sqrt{3}  

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Cel mai mare numar natural, multiplu de 20 , care apartine multimii { 10,20,30,40,........90} este.....

90

40

100

80

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Fie cubul ABCDA'BÇ'D' cu muchia AB =5 cm. Atunci lungimea muchiei BB' este egala cu......cm.

525\sqrt{2}

10

535\sqrt{3}

5

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Un cerc are lungimea egala cu

 12π12\pi  cm. Diametrul cercului este egal cu....cm.

6

12

 12π12\pi  

 6π6\pi  

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Perimetrul unui triunghi echilateral este egal cu 36 cm. Aria triunghiului este egala cu......

 cm2cm^2  .

 72372\sqrt{3}  

 36336\sqrt{3}  

 636\sqrt{3}  

 36236\sqrt{2}  

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Daca dintr-un numar real x scadem pe rand numerele 3, 10 si 11, obtinem trei numere a caror suma este egala cu x. Aflati x.

24

12

36

28

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 b=(3+12+13+16)5(12)2b=\left(3+\frac{1}{2}+\frac{1}{3}+\frac{1}{6}\right)\cdot\sqrt{5}\cdot\left(\frac{1}{2}\right)^2  

 56\frac{\sqrt{5}}{6}  

 524\frac{\sqrt{5}}{24}  

 5\sqrt{5}  

 354\frac{3\sqrt{5}}{4}  

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