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Grade: 12
        
In a ?ABC, if cos A / a = cos B / b = cos C / c and the side a = 2, then area of the triangle is
4 years ago

Answers : (1)

bharat bajaj
IIT Delhi
askIITians Faculty
122 Points
							cos A / a = cos B / b = cos C / c
cos A / (2R sin A) = cos B / (2R sin B) = cos C / (2R sin C)
cot A = cot B = cot C
A = B = C
?ABC is equilateral.
Area =Formula for area of an equilateral triangle=root 3
Thanks
Bharat Bajaj
askiitians faculty
IIT Delhi
4 years ago
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