Answer:
12
Step-by-step explanation:
0 + 1 + 2 + 3+ 4 + 5 + 6 + 7 +8 + 9 + 10 + 11 seems to equal 66. That means there are 11 + 1 = 12 people (don’t forget to count the person who shakes 0 hands)
32/4 is 8, so we know that the lengths of the sides are 8 feet.
Because of this
<u>I can safely say that the diagonal of the square is 8√2 feet long</u>.
Here's my proof: