Circles with parallel lines

[Wailingkoh]

Hi,
I was given this Grade 12 circle with parallel question, where I would have to find the difference between the shaded and unshaded area with only the parallel lines and 2cm and 4cm in the pic. Please help.

 

[stapel]

Hi,
I was given this Grade 12 circle with parallel question, where I would have to find the difference between the shaded and unshaded area with only the parallel lines and 2cm and 4cm in the pic. Please help.

Well, we can't even see the picture, so I'm afraid there's nothing we can do.

Please reply with the full and exact text of the exercise, the complete instructions, any associated graphics or other information, and a clear listing of your thoughts and efforts so far. Thank you!