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DABC be a tetrahedron such that AD is perpendicular to the base ABC and ∠ABC = 30º. The volume of

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DABC be a tetrahedron such that AD is perpendicular to the base ABC and ∠ABC = 30º. The volume of tetrahedron is 18. If value of AB + BC + AD is minimum then length of AC is

(A)  3(√6 -√3)

(B)  3(√6 - √2) 

(C)  2(√6 - √3) 

(D)  2(√6 -√2)

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1 Answer

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Best answer

Correct option (B)  3(√6 - √2) 

Explanation:

v = 1/3 AD 1/2

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