If an annulus has an inner diameter of d₁ and an outer diameter of d₂ then t

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If an annulus has an inner diameter of d₁ and an outer diameter of d₂ then the equivalent diameter is

Options:

A . 2 d₂ – d₁

B . d₂ – 2 d₁

C . d₁ – d₂

D . d₂ – d₁

Answer: Option D
Answer: (d).d₂ – d₁

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