Mathematics, 11.02.2020 23:16, nabeelunique
The five circles making up this archery target have diameters of length $2,4,6,8,$ and $10$. What is the total red area?
Simplify your answer as much as you can. You can use pi in your answer if necessary (for example, if the answer were $3\pi$, you could enter "3pi" or "3*pi" or "$3\pi$").
[asy]
size(4cm);
path a=Circle((0,0),5);
path b=Circle((0,0),4);
path c=Circle((0,0),3);
path d=Circle((0,0),2);
path e=Circle((0,0),1);
fill(a, red); fill(b, white); fill(c, red); fill(d, white); fill(e, red);
[/asy]
This is from Artofproblemsolving. com and yes my age here is not my real age i just chose a random year
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