Math Problem Statement
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Solution
To calculate the area of the shaded region in the given diagram:
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Understand the geometry: The figure is a square with side length , and the arcs are segments of circles with radii equal to the side length of the square. These arcs represent portions of a quarter-circle, where the circle's radius equals .
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Calculate the area of the square:
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Calculate the total area of the quarter-circle arcs: Each quarter-circle has an area of: There are two such quarter-circle arcs, so the total area of the circular regions is:
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Calculate the area of the shaded region: The shaded region is the area of the square minus the total area of the circular regions: Substituting the values: Approximating :
The shaded area is calculated as follows:
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Area of the square: The square has a side length of , so: [ \text{Area of square} = 10^2 = 100 , \text{cm}^2$$
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Area of the circular segments: There are two quarter-circles, each with a radius of . The area of one quarter-circle is: The total area of the two quarter-circles is:
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Area of the shaded region: The shaded area is the area of the square minus the total area of the two quarter-circles:
Substituting :
Therefore, the shaded area is approximately .
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Math Problem Analysis
Mathematical Concepts
Geometry
Area of a square
Area of a circle segment
Formulas
Area of a square: side^2
Area of a quarter-circle: (1/4)πr^2
Theorems
Circle area formula
Basic area subtraction
Suitable Grade Level
Grades 6-8