100 Day Summer Challenge

100 problems in 100 days. #100problems

Day 55

55 of 100: Rings

Geometry Level 1


  • These four congruent circles are aligned horizontally.
  • The area of the entire blue shaded portion of the figure is 22.
  • The area of the overlap between each pair of congruent circles is 4.
  • A is the lowest point on the left-most circle and B is the highest point on the right-most circle.

What is the area of one of the circles?

Start by figuring out the area of the four-overlapping-circle figure.

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