Question

Part A:
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.
Show your work!

Part B:
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 smaller circle (orange).

Use 3.14 for pi.
Show your work!

Part C:
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 sidewalk (shaded region between the blue and orange circles).

Use 3.14 for pi.
Show your work!

Please answer all of them. ;;
All of them have the same attached image.

Answer 1

Answer:

Part A: 379.94

Part B: 254.34

Part C: 125.6

Step-by-step explanation:

The are for the area of a circle is A = Pi*r^2

So for part A, do

A = 3.14 * 11^2

A = 3.14 * 121

A = 379.94

Same thing for Part B, just change the radius:

A = 3.14 * 9^2

A = 3.14 *81

A= 125.6

And for Part C, Subtract the area of the smaller from the area of the larger circle:

379.97 - 254.34 = 125.6

Answer 2

Answer:

I'm just answering this so that you can give them brainlest

Step-by-step explanation: Have a good day