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patriot [66]
3 years ago
13

At a zoo, the lion pen has a ring-shaped sidewalk around it. The outer edge of the sidewalk is a circle (blue) with a radius of

11 m. The inner edge of the sidewalk is a circle (orange) with a radius of 9 m. Find the approximate AREA of the larger circle (blue). use 3.14 for pi

Mathematics
1 answer:
Alecsey [184]3 years ago
8 0

Answer:

380.13 m

Step-by-step explanation:

You first need to write down the Area formula for a circle which is  A=pi x radius^2 .

So 11^2 x 3.1415...

121 x 3.1415... = 380.13 m

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In polar coordinates P is

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x =  radians

Finally the point is   P  ( 12 ; 2.618 )  

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