1.

In triangle \[ABC\]if \[\frac{\cos A}{a}=\frac{\cos B}{b}=\frac{\cos C}{c}\], then the triangle is [Karnataka 1991; Pb. CET 1989]

A. Right angled
B. Obtuse angled
C. Equilateral
D. Isosceles
Answer» D. Isosceles


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