TS EAMCET · Maths · Properties of Triangles
The perimeter of a \(\triangle \mathrm{ABC}\) is 6 times the arithmetic mean of the values of the sine of its angles. If its side \(\mathrm{BC}\) is of unit length, then \(\angle \mathrm{A}=\)
- A \(\frac{\pi}{6}\)
- B \(\frac{\pi}{3}\)
- C \(\frac{\pi}{2}\)
- D \(\pi\)
Answer & Solution
Correct Answer
(A) \(\frac{\pi}{6}\)
Step-by-step Solution
Detailed explanation
\(6\left(\frac{\sin \mathrm{A}+\sin \mathrm{B}+\sin \mathrm{C}}{3}\right)=a+b+c\)…
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