Area och omkrets: cirklar och fyrhörningar

Tio uppgifter om cirkelns area och omkrets, parallellogram, trapets och areaenheter.

10 questions · Years 7–9 · Mathematics

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Ungefär vilket värde har talet π?

Krzysztof Golik, CC BY-SA 4.0
- 1,62
- 3,41
- 3,14
- 2,72
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3,14
En cirkel har diametern 10 cm. Ungefär hur lång är omkretsen?
- 31,4 cm
- 78,5 cm
- 62,8 cm
- 15,7 cm
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31,4 cm
Ungefär hur stor area har en cirkel med radien 3 cm?
- 9,4 cm²
- 18,8 cm²
- 28,3 cm²
- 113 cm²
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28,3 cm²

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