Question
Two circles C₁ and C₂ touch each other externally. The radius of C₁ = 16 cm and the radius of C₂ = 8
Two circles C₁ and C₂ touch each other externally. The radius of C₁ = 16 cm and the radius of C₂ = 8
cm. Find the length (in cm) of their common tangent.
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