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MathematicsMathematics
15 December, 15:23

A stained glass window is going to be installed in a semi-circular opening, which is above a 34 inch wide door. If the stained glass window costs $0.95 per square inch, how much will the window cost? Use 3.14 for π

as necessary.

A. $389.10

B. $1,724.17

C. $431.04

D. $494.55

+2
Answers (1)
  1. 15 December, 15:44
    0
    The area of a full circle would be Area = PI x r^2

    The diameter would be the width of the dorr, so the radius would be half that. 34/2 = 17 inches.

    Area for a full circle would be 3.14 x 17^2 = 907.46 square inches.

    A semi circle is a half circle.

    The area would be 907.46 / 2 = 453.73 square inches.

    Multiply the area by the cost:

    453.73 x 0.95 = 431.04

    The answer is C.
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Home » Mathematics » A stained glass window is going to be installed in a semi-circular opening, which is above a 34 inch wide door. If the stained glass window costs $0.95 per square inch, how much will the window cost? Use 3.14 for π as necessary. A. $389.10 B. $1,724.
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