Properties of Triangles · Mathematics · AP EAPCET
MCQ (Single Correct Answer)
| List I | List II | ||
|---|---|---|---|
| (A) | $$ \sum \cot A $$ |
(i) | $$ (a+b+c)^2 \frac{1}{4 \Delta} $$ |
| (B) | $$ \sum \cot \frac{A}{2} $$ |
(ii) | $$ \left(a^2+b^2+c^2\right) \frac{1}{4 \Delta} $$ |
| (C) | If $\tan A: \tan B: \tan C=1: 2: 3$, then $\sin A: \sin B: \sin C=$ | (iii) | $$ 8: 6: 5 $$ |
| (D) | $$ \begin{aligned} &\text { If } \cot \frac{A}{2}: \cot \frac{B}{2}: \cot \frac{C}{2}=3: 7: 9\\ &\text { then } a: b: c= \end{aligned} $$ |
(iv) | $$ 12: 5: 13 $$ |
| (v) | $$ \sqrt{5}: 2 \sqrt{2}: 3 $$ |
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| (vi) | $$ 4 \Delta $$ |
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