A circular pizza with a diameter of 12 inches in a square box with side lengths of 14 inches, how much of the box is empty

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answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,

1/8 is left? add a bit more info plz