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SASMO 2019 Grade 6 Question 3

SASMO · SASMO 2019 Grade 6

Question 3

A cube is a solid consisting of identical squares. A cube has 6 faces. A “dodecahedron” is a solid consisting of identical pentagons (5-sided shapes), as illustrated below. If a dodecahedron has 12 faces, how many edges does it have?

Question illustration

Question illustration
  1. 5
  2. 20
  3. 12
  4. 30
  5. None of the above