Answer:
non of these choices I guess
Answer:
the answer is 11
you need to add 9 with 2
i think the KFC thecnique cant be use in this question
The answer is d because if you take a slither off of the left side instead of twelve you have 11 so 11+11+8+8 would equal 38. 38 isnt an option so you take another slither off so now 12 becomes 10. 10 +10+8+8= 36
Recognize the differnce of 2 perfect squares
a²-b²=(a-b)(a+b)
so