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Two diagonals are drawn from the top corner of a pentagon. How many triangles are there?

Competition practiceCounting Figures
  • A2
  • B4
  • C3
  • D5

Step-by-Step Solution

The diagonals split the pentagon into 3 triangles. Any two neighbouring pieces together make a four-sided shape, not a triangle, so the answer is 3.
Answer: C) 3

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