
Riņķis, riņķa līnija, loga garums, sektora laukums

Quiz
•
Mathematics
•
9th Grade
•
Medium
Līga Blumbeka
Used 10+ times
FREE Resource
6 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Aprēķināt riņķa rādiusu, ja tā laukums S=81π
m2
3
9
40,5
4,5
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Loks atrodas uz riņķa līnijas, kuras rādiuss ir 9 cm, un to nosaka 270° liels centra leņķis.
Aprēķināt riņķa līnijas loka garumu ℓ.
(Aprēķinos pieņemt, ka π≈3)
18 cm
60,75 cm
40,5 cm
81 cm
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Zināms, ka kaza piesieta 2,9 m garā ķēdē. Cik lielu laukumu tā nobradās?
2⋅2,9π
5,8
π
2,9
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Aprēķināt riņķa laukumu, ja horda EF=5dm
un centra leņķis ∢EOF=60°
75
15
100
300
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Aprēķināt iekrāsotā sektora laukumu (S) , ja riņķa rādiuss ir 4 cm un iekrāsotā sektora centra leņķis ir 60°
4
16
8
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Aprēķini sektora laukumu, ja riņķa rādiuss ir 4 cm un sektora centra leņķis ir 210°
(Izmanto aptuveno vienādību π≈3)
14
56
7
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