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Medlem sedan 2016-01-16

Hej! har problem med två frågor som jag skulle vilja ha hjälp med

10. Cirkelns radie är 2 cm och M är cirkelns medelpunkt. Hur stor är arean av det skuggade cirkelsegmentet?


  A (4π − 2) cm2
  B (4π − 4) cm2
  C π cm2
  D (π − 2) cm2

11. Vad är 0,25 % av 16?

  A 4
  B 4 10
  C 4 100
  D 4 1000

Tack på förhand

     
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Inlägg totalt 1

Medlem sedan 2016-01-13

11. 0,25% av 16

16 = 100%
1,6 = 10%
0,16 = 1%
0,16/4 = 0,25% => 0,04

Gällande uppgift 10, hur ser figuren ut?

     

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