Triangles in a Triangle Four rows of a triangular figure
Chapter 1, Problem 1.1.34(choose chapter or problem)
Triangles in a Triangle Four rows of a triangular figure are shown. a) If you added six additional rows to the bottom of this triangle, using the same pattern displayed, how many triangles would appear in the 10th row? b) If the triangles in all 10 rows were added, how many triangles would appear in the entire figure?
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