Geometry

# Tools: Complementary Areas

What is the area of the shaded region?

If the area of the blue drop is 9, what area is shaded pink?

Two squares with side length 10 are joined together. If all circular sections shown are the same size, what is the total area of the white sections?

If the area of the circle is $16\pi,$ what area is shaded grey?

What is the area of the portion of the rectangle that's not shaded green or blue? (Try not to count grid squares)

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