AP EAMCET · Maths · Properties of Triangles
In \(\triangle P Q R\), find \(\Sigma(q+r) \cos P\), if \(p, q, r\) denote its sides and \(s=\frac{(p+q+r)}{2}\)
- A \(s\)
- B \(s / 2\)
- C \(2 \mathrm{~s}\)
- D \(4 \mathrm{~s}\)
Answer & Solution
Correct Answer
(C) \(2 \mathrm{~s}\)
Step-by-step Solution
Detailed explanation
It is given that in a \(\triangle P Q R, p, q, r\) denotes its sides, so \(\Sigma(q+r) \cos P\)…
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