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IF the perimeter of a triangle is 12 tim...

IF the perimeter of a triangle is 12 times the arithmetic mean of the sides of its angles then its circumference=

A

1

B

2

C

3

D

6

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The correct Answer is:
B
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DIPTI PUBLICATION ( AP EAMET)-PROPERTIES OF TRIANGLES -EXERCISE 1A
  1. The diameter of the circumcircle of the triangle whose sides 61,60,11 ...

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  2. IF the sides of a triangle ABC are 6,8,10 unit , then the radius of i...

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  3. IF the perimeter of a triangle is 12 times the arithmetic mean of the ...

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  4. In Delta ABC, if b=c=R then A=

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  5. IF the area of the triangle ABC is a^2-(b-c)^2, then its circumradius ...

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  6. If Delta =a^2-(b-c)^2, is the area of the triangle ABC, then tan A=

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  7. IF the sides of a triangle are 7,4sqrt3,sqrt13 then its smallest angle...

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  8. In Delta ABC, if cot""A/2: cot""B/2:cot ""C/2=1:4:15, then the greates...

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  9. IF x^2+x+1,2x+1,x^2-1 are the sides of a triangle then its largest ang...

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  10. If the sides of a triangle are in the ratio x:y:sqrt(x^2+xy+y^2), then...

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  11. The sides of a triangle are sin alpha,cos alpha and sqrt(1+sin alpha c...

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  12. The smallest angle of the triangle whose sides are 6+sqrt12,sqrt48,sqr...

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  13. IF the angles of a triangle are in the ratio 2:3:5, then the ratio of ...

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  14. If the angles of a right angled triangle are in A.P then the sides are...

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  15. IF the angles of a triangle are in the ratio 1:2:3, the corresponding ...

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  16. If the angles of a triangle are in the ratio 1:2:7, then the ratio of ...

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  17. The angles of a triangle are in the ratio 3:5:10. Then the ratio of th...

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  18. IF the angles of triangle are in the ratio 1:1:4 then the ratio of the...

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  19. In Delta ABC, if sin^2 A+sin^2 B=sin^2 C, then C=

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  20. In Delta ABC, sin A: sin B: sin C is

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