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If l1, l2, l3 are lengths of altitudes of a triangle and R/l1 + R/l2 + R/l3 = 2 R is circumradius, then

(A)   l1 = 3r 

(B)   l2 = 3r 

(C)  l3 = 4r 

(D)  l2 = 4r

1 Answer

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Best answer

Correct option  (A), (B)

⇒ R = 2r

⇒ Triangle is equilateral

⇒ l1 = l2 = l3 = 3r

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