KA = KB + 4
2πra = 2πr + 4
2πra - 2πrb = 4
2π (ra + rb) = 4
ra - rb = 4 : 2 π
ra - rb = 0,6369
Sehingga selisih antara ra dan rb adalah 0,6369
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KA = KB + 4
2πra = 2πr + 4
2πra - 2πrb = 4
2π (ra + rb) = 4
ra - rb = 4 : 2 π
ra - rb = 0,6369
Sehingga selisih antara ra dan rb adalah 0,6369