1
AP EAPCET 2022 - 4th July Morning Shift
+1
-0

In a $$\triangle A B C, r_1 \cot \frac{A}{2}+r_2 \cot \frac{B}{2}+r_3 \cot \frac{C}{2}=$$

A
s
B
2s
C
3s
D
s/2
2
AP EAPCET 2021 - 20th August Morning Shift
+1
-0

In $$\triangle A B C$$, medians $$A D$$ and $$B E$$ are drawn. If $$A D=4, \angle D A B=\frac{\pi}{6}$$ and $$\angle A B E=\frac{\pi}{3}$$, then the area of $$\triangle A B C$$ is

A
$$\frac{8}{3}$$ sq units
B
$$\frac{16}{3} \mathrm{sq}$$ units
C
$$\frac{32}{3 \sqrt{2}}$$ sq units
D
$$\frac{64}{3}$$ sq units
3
AP EAPCET 2021 - 20th August Morning Shift
+1
-0

In a $$\triangle A B C, 2 \Delta^2=\frac{a^2 b^2 c^2}{a^2+b^2+c^2}$$, then the triangle is

A
equilateral
B
isosceles
C
right angled
D
acute angled triangle
4
AP EAPCET 2021 - 19th August Evening Shift
+1
-0

In $$\triangle A B C$$, suppose the radius of the circle opposite to an angle $$A$$ is denoted by $$r_1$$, similarly $$r_2 \leftrightarrow$$ angle $$B, r_3 \leftrightarrow$$ angle $$C$$. If $$r_1=2, r_2=3, r_3=6$$, what is the value of $$r_1+r_2+r_3-r=$$ (R - radius of the circum circle).

A
4R
B
3R
C
2R
D
R
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