Question:
How many triangles are there in given figure:-
How many triangles are there in given figure:-
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The figure is a large triangle divided into a 4-row grid of 16 small triangles; count by size, upward and downward triangles separately.
Updated On: Nov 12, 2026
- 26
- 25
- 27
- 24
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The Correct Option is C
Solution and Explanation
The figure is a triangular grid with 4 small triangles along each side (16 small triangles in all).
Upward triangles: side 1 unit = 1+2+3+4 = 10; side 2 units = 1+2+3 = 6; side 3 units = 1+2 = 3; side 4 units = 1. Total 20.
Downward triangles: side 1 unit = 1+2+3 = 6; side 2 units = 1. Total 7.
Total triangles = 20 + 7 = 27.
Answer: (3) 27
Upward triangles: side 1 unit = 1+2+3+4 = 10; side 2 units = 1+2+3 = 6; side 3 units = 1+2 = 3; side 4 units = 1. Total 20.
Downward triangles: side 1 unit = 1+2+3 = 6; side 2 units = 1. Total 7.
Total triangles = 20 + 7 = 27.
Answer: (3) 27
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