Paris09292007
contestada

In the diagram below, the radii of the two concentric circles are 3 centimeters and 7 centimeters, respectively.

What is the area of the shaded region?

40pi cm2
41pi cm2
8pi cm
80pi cm

In the diagram below the radii of the two concentric circles are 3 centimeters and 7 centimeters respectively What is the area of the shaded region 40pi cm2 41p class=

Respuesta :

bobrowder7

Answer: 40 pi cm^2

Step-by-step explanation: the area of a circle is pi*r^2. the shaded region is the area of the large circle minus the area of the small circle. the larger circle has an area of 49pi and the smaller circle has an area of 9pi. 49pi-9pi is 40pi cm^2

efletcher011913
i do believe the answer is 41pi cm2

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