Fill in the blank: JAK, KBL, LCM, MDN, \(\underline{\hspace{1cm}}\)
Let's analyze the pattern in the three-letter groups by looking at each position separately.
First Letter: J, K, L, M, \(\underline{\hspace{1cm}}\). This is a simple sequence of consecutive letters. The next letter is N.
Second Letter: A, B, C, D, \(\underline{\hspace{1cm}}\). This is also a simple sequence of consecutive letters. The next letter is E.
Third Letter: K, L, M, N, \(\underline{\hspace{1cm}}\). This is also a simple sequence of consecutive letters. The next letter is O. Combining the next letters in each position gives us NEO.
How many triangles are there in the figure given below? 