Daca ABCDA'B'C'D' este un paralelipiped dreptunghic si AD' DA'={O} atunci dreapta B'O este secanta planului (ABC)

Fisa pentru portofoliul elevului clasa a VIII-a

Quiz
•
Mathematics
•
3rd Grade
•
Medium

angelica mistreanu
Used 11+ times
FREE Resource
9 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
A
F
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Daca ABCDA'B'C'D' este o prisma patrulatera regulata, atunci m(<B'BD)=90
A
F
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Daca ABCDA'B'C'D' este un cub ,atunci (A'AB)||(D'DC).
A
F
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Daca ABCDA'B'C'D'este un cub cu muchia de 11 cm atunci d(D'(ABC) este:
11 cm
15cm
22 cm
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Dac un trunchi de piramida regulata are L=7cm,l=4cm si m=5cm atunci perimetrul unei fete este:
21cm
12cm
16cm
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Daca ABCA'B'C' este o prisma triunghiulara regulata cu l=5cm h=5 3cm atunci m(<B'CB)este:
45*
30*
60*
7.
MULTIPLE SELECT QUESTION
15 mins • 1 pt
Se considera piramida patrulatera regulata VABCD cu varful in V.Daca triunghiul VAC este echilateral cu perimetrul de 36 cm,atunci apotema piramidei are lungimea egala cu:
9
8.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Fie ABCA'B'C' o prisma triunghiulara regulata cu l=4cm,aria lui A'BC= atunci inaltimea prismei are lungimea egala cu
9.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
Se considera trapezul ABCD cu AB|| CDsi AC BD ={O}.In puctul O construim EO (ABC).Daca AB=2cm, CD=10cm, AC=6cm si EO= atunci perimetrul lui EAC este:
15cm
12cm
18cm
16cm
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