Conul circular drept - formule pentru arii şi volum
Quiz
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Other, Other
•
8th Grade
•
Practice Problem
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Medium
Boldea Daniela
Used 4+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Aria laterală a unei piramide regulate drepte se determină cu formula
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Aria totală a piramidei regulate drepte se calculează cu formula
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Volumul unei piramide regulate drepte se determină cu formula
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Deoarece un cerc poate fi aproximat cu un poligon regulat care are un număr mare de laturi, formulele pentru ariile şi volumul piramidei regulate drepte pot fi folosite şi la ariile şi volumul conului.
Astfel, aria laterală a conului se determină cu formula
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Aria totală a conului se determină cu formula
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Volumul unui con se determină cu formula
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Axa de simetrie a conului este înălţimea VO. Secţiunea axială este triunghiul isoscel VAB.
Dacă R =3 cm, VO = 4 cm, atunci aria secţiunii axiale VAB se determină cu formula
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