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What is lens base 9D on Rayban sunglasses?

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Anonymous

∙ 16y ago
Updated: 6/25/2024

This is the depth of a pair of sunglasses. 1d is straight, 9d is very curved. So 9d lens bases will also cover the sides of eyes...

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Wiki User

∙ 16y ago
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121 in base 4 plus 84 in base 16?

121 in base 4 = 16 + 8 + 1 (base ten) = 2584 in base 16 = 128 + 4 (base ten) = 132132 + 25 = 157(base 10) = 9D (base 16) = 2131 (base 4)


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Factor c squared plus 9d squared - 4?

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