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In DeltaABC,(cot(A//2)+cot(B//2)+cot(C//...

In `DeltaABC,(cot(A//2)+cot(B//2)+cot(C//2))/(cotA+cotB+cotC)=`

A

`((a + b + c)^(2))/(a^(2) + b^(2) + c^(2))`

B

`(a^(2) + b^(2) + c^(2))/((a + b + c)^(2))`

C

s

D

`Delta `

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A
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AAKASH SERIES-PROPERTIES OF TRIANGLES-LECTURE SHEET EXERCISE - II(Straight Objective Type Questions)
  1. In triangle ABC, a, b, c are the lengths of its sides and A, B C are t...

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  2. In a Delta ABC , " if " A = 60^(@) , then the value of (1 + a/c + b/c...

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  3. In DeltaABC,(cot(A//2)+cot(B//2)+cot(C//2))/(cotA+cotB+cotC)=

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  4. Let PQR be a triangle of area Delta with a = 2, b = 7//2 , " and " ...

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  5. If the sides of a triangle are in A.P. and difference between the grea...

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  6. The sides of triangle are 4,5,6 then area is

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  7. If the area os an isosceles triangle is sqrt2 + 1 and vertical angle i...

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  8. In a Delta ABC , median AD and BE are drawn . If AD = 4, angle DAB = ...

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  9. In triangle ABC, medians AD and CE are drawn. If AD = 5, angle DAC = p...

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  10. The altitudes from the angular points A, B and C on the opposite sides...

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  11. In triangle ABC, if P, Q, R divides sides BC, AC, and AB, respectively...

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  12. ABC is a triangle, P is a point on AB and Q is a point on AC such that...

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  13. The distance from a point A to a line BC is 3. Two lines L and L' para...

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  14. ABCD is a square. P is a point inside the square such that PA = 3, PB ...

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  15. Two equilateral triangles are constructed from a line segment of lengt...

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  16. In a Delta^("le") ABC, point E is on bar(AB) so that AE = 1/2 (EB) . I...

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  17. The area of an equilateral triangle containing in its interior a point...

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  18. If a^(2) + b^(2) + c^(2) = 8 R^(2), then the triangle is

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  19. In a Delta ABC " if " a^(2) sin (B - C) + b^(2) sin (C - A) + c^(2) s...

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  20. If for DeltaABC, cotA cotB cotC gt0 then the triangle is

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