- A10
- B20
- C15
- D16
Step-by-Step Solution
5 lines leave the apex (2 sides + 3 inner). The base gives triangles and the parallel line gives another 10. Total .
Answer: B) 20
Three lines go from the apex of the triangle to its base, and one line is drawn across it parallel to the base. What is the total number of triangles?
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