
Obvod a obsah čtverce a obdélníku
Authored by Alice HARVALÍKOVÁ
Mathematics
4th Grade
Used 9+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vyber vzorec pro obvod čtverce:
S = a . a
S = a . b
o = 4 . a
o = 2 . a + 2 . b
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Jaký je vzorec pro výpočet obsahu čtverce?
o = 2 . (a + b)
o = 4 . a
S = a . a
S = a . b
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Kolik cm měří obvod čtverce o straně a = 3 cm?
10
12
14
16
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Kolik cm měří obvod obdélníku o stranách a = 4 cm, b = 5 cm?
12
16
18
20
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Jaký obvod má rovnostranný trojúhelník o straně a = 7 cm?
12 cm
140 mm
120 cm
21 cm
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Vypočítej obsah čtverce o straně a = 5 cm
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Jaký je obsah obdélníku o stranách a = 2 cm, b = 5 cm?
20 cm2
12 cm2
14 cm2
10 cm2
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