Question

The figure below shows the top view of a circular room with a circular stage. The diameter of the stage is 24 feet. The shaded portion represents the seating for the audience around the stage.

Answer 1

Use 22/7 AS pi

What is the area of the seating portion?

Answer 2

yeah this is the one..

Answer 3

try posting images instead of doc files.

Answer 4

okay.. ummmm how... idk how to do that??

Answer 5

there's is a print screen button at your key board. take screenshot and make image files.

Answer 6

you cant open it?? & i have a mac..... i don't have that button.....

Answer 7

well, idk abt mac.
area of big circle - area of small circle - area of big circle segment + area of small circle segment

Answer 8

you know how to find area of segment??

Answer 9

ummm.... no..... a=pi*r^2?? or the area of a sphere?

Answer 10

that is area of circle.

area of segment is angle/360 * pi * r^2

Answer 11

65/360 * 22/7(this is pi)*12^2...

Answer 12

yeah that is for small circle ... I think you can do this for big circle.

Answer 13

this is what i got for the big circle... 81.7148024... does that seem right, & do i use the same formula you just gave me for smaller circle.. ?

Answer 14

what does the number in the image '100' ?? what is that? cuz they said thats not the diameter... than wat is it?

Answer 15

oh ... i don't have calculator

Answer 16

that is the diameter of big circle.

Answer 17

Ohhh.. nvm then i just found the area for the smaller circle.. now i will do the area for bigger circle.. & do i subtract the areas?

Answer 18

area of big circle - area of small circle - area of big circle segment + area of small circle segment

Answer 19

I think you can do it ... i'll be around, let me know if you run into trouble.

Answer 20

Ohhhh.. umm.. okay so i am find areas of segments... and okay i understand now:) thanks

Answer 21

you are welcome.

Answer 22

your a genus! its right:) Thanks