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dianreidreid dianreidreid
  • 25-11-2020
  • Mathematics
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An album is 20cm long and 14 cm wide. Sal uses some lace to make an edge around the cover of the album. She has 12 cm of lace left over afterwards. How long was her piece of lace?

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yanc14 yanc14
  • 25-11-2020
Her piece of lace was 80 cm.

2(14)+2(20)+12
28+40+12
=80
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