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2*3.14*(7/4)*(15/2)+3.14*(7/4)^2 = 0
6.28*(7/4)*(15/2)+3.14*(7/4)^2 = 0
7/4*6.28*(15/2)+3.14*(7/4)^2 = 0
10.99*(15/2)+3.14*(7/4)^2 = 0
15/2*10.99+3.14*(7/4)^2 = 0
3.14*(7/4)^2+82.425 = 0
49/16*3.14+82.425 = 0
9.61625+82.425 = 0
92.04125 = 0
L <> R
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