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In Delta ABC, if r1=36, r2=18, r3=12, th...

In `Delta ABC, if r_1=36, r_2=18, r_3=12`, then R=

A

15

B

18

C

24

D

30

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The correct Answer is:
A
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DIPTI PUBLICATION ( AP EAMET)-PROPERTIES OF TRIANGLES -EXERCISE 1B
  1. In Delta ABC, if a=26, b=30 cos C=63//65, then the value of r2 is

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  2. In Delta ABC, if a=30, b=24, c= 18, then r3=

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  3. In Delta ABC, if r1=36, r2=18, r3=12, then R=

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  4. In Delta ABC, if r1=8, r2=12, r3=24, then a=

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  5. IF in a triangle ABC,r1=2,r2=3 and r3=6 then a=

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  6. In Delta ABC, if r1=36, r2=18,r3=12, then b=

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  7. In Delta ABC, if r1=3, r2=10, r3=15 then c=

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  8. In a triangle ABC,(s-a)/Delta=1/8,(s-b)/Delta=1/12,(s-c)/Delta=1/24 th...

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  9. IF 2,4,6,12 are in radius and exradii of triangle , then its area is

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  10. In an equilateral triangle r:R:r1 is

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  11. In the area of Delta ABC is 96 sq.cm and its perimeter is 16 cm, then ...

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  12. If the perimeter of a triangle is 12 unit and it in radius is 1 unit, ...

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  13. IF the area of a triangle is 6 sq.unit and its in radius 2 unit then i...

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  14. The perimeter of a triangle right angled at C is 70, and the in-radius...

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  15. In Delta ABC, if Delta =8 sq.unit, s=1.5 unit then its inradius is

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  16. In Delta ABC, if a=26,b=30, cos C=63//65 then r1:r2:r3=

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  17. In Delta ABC, if a=30 b=24 c=18, then the ratio 1/r1:1/r2:1/r3=

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  18. In Delta ABC, r =

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  19. In Delta ABC, r1r2r3=

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  20. In DeltaABC,sqrt(rr1r2r3)/(2Rr(sinA+sinB+sinC)) =

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