Answer:
174.8 in²
Explanation:
Shaded area = square area - circle area
---------------------
Square
a = 15 * 15
a = 225
Circle
a = π * 4²
a = 3.14 * 16
a = 50.24
------------------------
Shaded
a = 225 - 50.24
a = 174.76
Rounded
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