Open Middle®
Directions: How many squares are shown in the diagram below?
Hint
What makes a square a square?
Answer
5 squares. The interesting part about this problem is the vocabulary and parallelogram theorems involved in counting and proving what is a square.
Source: This problem was found in the Fifth Edition Elementary Geometry for College Students by Alexander and Koeberlein
Love this problem. Though I’m already predicting some students will count the right angle symbol as an additional square (and I think they might be right about that).
Except that the right angle symbol does not have its sides marked congruent.
suggest remove that symbol and insert 90 degrees