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In triangle ABC , if cot A , cot B , cot...

In triangle ABC , if `cot A , cot B , cot C ` are in A.P., then `a^(2), b^(2) , c^(2)` are in …………

A

A.P

B

G.P

C

H.P

D

A.G.P

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AAKASH SERIES-PROPERTIES OF TRIANGLES-LECTURE SHEET EXERCISE - I ( Straight Objective Type Questions )
  1. In a triangle ABC, if A,B, C are in A.P and b:c =sqrt3:sqrt2, then

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  2. In Delta ABC, if cos A cos B+ sin A sin B sin C=1, then a:b:c=

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  3. In triangle ABC , if cot A , cot B , cot C are in A.P., then a^(2), b...

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  4. Which of the following does not exist ?

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  5. If the angles A, B and C of a triangle are in an arithmetic progressio...

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  6. If a, b and c represent the lengths of sides of a triangle, then the p...

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  7. In Delta ABC , angle A = 90^(@) and AD is an altitude . Complete the r...

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  8. ABC is a triangle with angle B greater than angle C . D and E are poin...

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  9. Two parallel chords of a circle of radius 2 are at a distance sqrt3 + ...

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  10. In triangle ABC, angle B = pi//3. " and " angle C = pi//4 . Let D div...

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  11. If the angles of a triangle are in the ration 4:1:1 then the ratio of ...

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  12. A triangle has base 10 and base angles are 50, 70If the perimeter of t...

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  13. The side of triangle ABC satisfy the relation a + b - c = 2 " and " 2a...

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  14. In Delta ABC , " if " a = 2, b = 3 " and " sin A = 2/3 . Then , cos C ...

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  15. O is the circumcentre of the triangle ABC and R(1), R(2), R(3) are th...

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  16. If b = 20 , c = 21 ," and " sin A = 3/5 then a =

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  17. If the sides of a triangle are 4 cm, 5 cm, 6 cm then ratio of the cosi...

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  18. In Delta ABC , 2ac sin ""( 1)/(2) (A-B+C)=

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  19. In triangle ABC , a = 4, b = 3 and angle A = 60^(@) . Then c is root...

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  20. In a Delta ABC , if D is the mid point of BC and AD is perpendicular ...

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