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Ainat [17]
2 years ago
5

Which is the closest to the area that is painted blue? A 308 units B. 116 units C. 463 units? D 124 units

Mathematics
1 answer:
Charra [1.4K]2 years ago
6 0

Step-by-step explanation:

first of all, all answer options are basically wrong, because an area is always measured in units² (and not just in units).

the blue colored area is the area of the whole square minus the area of the circle.

the side length of the square is 2 times the radius of the circle (the diameter) : 2×12 = 24 units.

so, the area of the square is

24² = 576 units²

the are of the circle is

pi×r² = pi×12² = 144pi units²

so, the blue area is

576 - 144pi = 123.6106579... ≈ 124 units²

therefore, D is the right answer.

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