Lungimea cercului cu raza de 4 cm este

Lungimea cercului,aria discului

Quiz
•
Mathematics
•
Professional Development
•
Medium
Loghin Aliona
Used 13+ times
FREE Resource
8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
4ŋ
8ŋ cm
8ŋ cm
16 ŋ cm
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Elementele cercului sunt
raza,diametru,coarde
lungime
arie
Pi
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Aria discului este
2ŋr
ŋr2
ŋr
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Lungimea cercului este
ŋr2
2ŋr
ŋr
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Raza unui cerc este de 10 cm.Punctul O este centrul cerculuiu. Care este poziția punctului M față de cerc, dacă MO = 7,8 cm
exterior
interior
pe cerc
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dacă [FC] este un diametru al cercului cu centru H, atunci punctele F,H,G sunt coliniare?
Adevărat
Fals
Nu cunosc răspunsul
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dacă [AB] este diametru, [AO] este rază atunci AB= 2·AO
Fals
Adevărat
Nu cunosc răspunsul.
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Constanta π ( Pi ) Are valoarea
= 3,14
3
≈ 3,14
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