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Given (b+c)/(11) = (c+a)/(12) = (a+b)/(...

Given `(b+c)/(11) = (c+a)/(12) = (a+b)/(13)` for a `Delta ABC` with usual notation. If `(cos A)/(alpha) = (cos B)/(beta) = (cos C)/(gamma)`, then the ordered triad `(alpha, beta, gamma)` has a value:

A

(3,4,5)

B

(19,7,25)

C

(7,19,25)

D

(5,12,13)

Text Solution

Verified by Experts

The correct Answer is:
C
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