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Use a Calculator to Solve the Equation π\pi If the Area a of a Certain Circle Is

Question 31

Multiple Choice

Use a calculator to solve the equation. Round to the nearest hundredth, if necessary.
-The area of a circle is found by the equation A = π\pi Use a calculator to solve the equation. Round to the nearest hundredth, if necessary. -The area of a circle is found by the equation A = \pi . If the area A of a certain circle is 9 \pi square centimeters, find its radius r. A) r = 3 \pi cm B) r = 3 cm C) r = 3 cm D) r = ± 3 cm . If the area A of a certain circle is 9 π\pi square centimeters, find its radius r.


A) r = 3 π\pi cm
B) r = 3 cm
C) r = 3 Use a calculator to solve the equation. Round to the nearest hundredth, if necessary. -The area of a circle is found by the equation A = \pi . If the area A of a certain circle is 9 \pi square centimeters, find its radius r. A) r = 3 \pi cm B) r = 3 cm C) r = 3 cm D) r = ± 3 cm cm
D) r = ± 3 cm

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