1. Shawna designed a dartboard. She started with a grey circle, then painted a white circle
on top of that in the middle, and then painted a black circle on top of that in the middle.
All three circles share the same centre.
The radius of the white circle is double the radius of the black circle
The radius of the grey circle is triple the radius of the black circle.
What fraction of the area of Shawna's board is black?
What fraction is white?
What fraction is grey?
2. Design a dartboard similar to Shawna's
Make the grey area of the whole area of the board.
How are the radi of the grey and white circles in your board related?
3. Design a new dartboard with grey, white, and black sections. Make the
circumference of the grey circle 10 times the circumference of the black circle
How are all three radi related?
Pls fast