100 Day Summer Challenge

100 problems in 100 days. #100problems

Day 69

69 of 100: No Trigonometry Required!

Geometry Level 1

The big square above is divided into nine congruent squares. What is the sum of the measures of the three shaded angles?

As usual for the geometry problems in this challenge, there are many ways to approach this problem. For example, there's one clever technique that involves shifting the segments to different positions on the grid.


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