Practicing Success
How many triangle is in the given figure? |
30 40 50 45 |
45 |
The number of triangles in the given figure is: Number of horizontal lines = 3 Trick = (1 + 2 + 3 + 4 + 5) × ( number of horizontal lines ) (1 + 2 + 3 + 4 + 5) × ( 3 ) = 45 |