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mrs corwin has a contractor install a new quarter circle window in her house like shown at right. what is the area of the window? use 3.14 pi. round to the nearest tenth

Sagot :

The area of a circle is given by:

[tex]A=\pi r^2[/tex]

Since it is a quarter of the circle, the area is:

[tex]\begin{gathered} A=\frac{\pi r^2_{}}{4} \\ where \\ r=7 \\ \pi=3.14 \\ so\colon \\ A=\frac{(3.14)(7^2)}{4} \\ A\approx38.5in^2 \end{gathered}[/tex]