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IF the sides of a triangle ABC are 6,8,...

IF the sides of a triangle ABC are 6,8,10 unit , then the radius of its circumcentre is

A

`4`

B

`3`

C

`6`

D

`5`

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The correct Answer is:
D
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AAKASH SERIES-PROPERTIES OF TRIANGLES-EXERCISE - 1
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  2. In any Delta ABC,((a+b+c)(b+c-a)(c+a-b)(a+b-c))/(4b^2c^2)=

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

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  4. In Delta ABC r1 cot "" (A)/(2) + r2 cot "" (B)/(2) + r3 cot "" ( C )...

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  5. r ( cot "" ( B) /(2) + cot "" ( C) /(2)) =

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  6. In Delta ABC, if a,b,c are in A.P, then r1,r2,r3 are in

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  7. Prove that r+ r3 + r1 -r2= 4 R cos B

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  8. IF in a Delta ABC, r3=r1+r2+r, then angle A+ angle B=

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  11. The shadow of the tower standing on a level ground is found to be 60 m...

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  12. A person standing on the bank of a river observes that the angle subte...

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  13. The angle of elevation of the top of an unfinished tower from a point ...

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  14. If a flag staff of 6 mt high placed on the top of a tower throws a sha...

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  15. A sphere of radius 'a' subtends an angle 60^(@) at a point P. Then the...

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  16. Two tress A and B are on the same side of a river . From a point C in ...

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  17. Two ships leave a port at the same time . One goes 24km per hour in th...

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  18. If tan "" (A ) /(2) = (5)/(6) , tan "" ( B)/(2) = ( 20 )/( 37) " t...

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  19. In a triangle ABC if (cos A)/a=(cos B)/b= (cos C)/c, then Delta ABC is

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  20. In Delta ABC, if sin C=(sin A)/(2 cos B) then the triangle is

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