MHB How Do Circles and Parallel Lines Interact in Geometry?

wailingkoh
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Hi all,

Please help. I am stuck with the question below and I have no clue how to solve:

View attachment 4573

Thanks for the help.
 

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Hi
Thanks for the reply. Do I solve it by fraction. Sorry, I am very lost with this question
 
8 multiply by 4 for 32 units square but I still won't get the full shaded and unshaded
 
You don't need them. "Cancelling" the dotted areas with their corresponding shaded areas leaves a dotted rectangle which is 32 cm. squared. That's the difference between the two areas.
 
Awesome!
I was so silly.

Thanks for the help.

This forum is great
 

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