mariluevano33 mariluevano33
  • 24-08-2019
  • Mathematics
contestada

Suppose the area of a circle is 254.4696 square inches. Whats the radius of the circle? Use pie=3.1416. A. 18 in B. 81 in. C. 9 in D. 9 in 2

Respuesta :

Gasaqui
Gasaqui Gasaqui
  • 24-08-2019

Answer:

radius = 9 inches

Step-by-step explanation:

[tex]Area = \pi r^{2}[/tex]

r = radius

Area = 254.4696 square inches

so we have:

[tex]r^{2} = \frac{A}{\pi} \\\\r = \sqrt{\frac{A}{\pi}} \\\\r = \sqrt{\frac{254.4696}{3.1416}} \\\\r = \sqrt{81}[/tex]

so we have: r = 9 inches

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