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If angle C = 90 ^(@) ," then " 2(r + ...

If ` angle C = 90 ^(@) ," then " 2(r + R)` =

A

` a-b`

B

` a+b `

C

` 2( a+ b) `

D

` 2(a-b)`

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The correct Answer is:
B
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AAKASH SERIES-PROPERTIES OF TRIANGLES-PRACTICE EXERCISE
  1. In Delta ABC, if r2 = 3 , r3 = 4 then the length of the altitude ...

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  2. If r1 = 36,r2 = 18 r3 = 12 then the area of Delta ABC is

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  3. If angle C = 90 ^(@) ," then " 2(r + R) =

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  4. If r1 = r2 = r3 then triangle is

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  5. if x,y,z are the distances of the vertices of Delta ABC from its...

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  6. If the side of an equilateral triangle is 2sqrt3 then each of exrad...

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  7. In an equilateral triangle ABC, P1 is length of altitude from A ...

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  8. a( r r 1 +r2r3) =

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  9. ( r1+ r2) (r2+r3) (r3+r1) =

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  10. If I1 is the centre of the first escribed circle , then the value ...

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  11. In Delta ABC , if 2R = r1 -r " then " angle A =

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  12. In Delta ABC , if r1= 3 r2 = 10 , r3 = 15, then R =

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  13. In Delta ABC , if r= 1 , r1 =2 r2 =3 , r3 = 6 then a=

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

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  15. In Delta ABC, a= 26 , b= 30 cos "" C = (63)/( 65) , " then" r1:r2...

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  16. In Delta ABC , (1)/(r^(2)) + (1)/( r1^(2)) +(1)/( r2^(2)) + (1)/(r3^(...

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  17. In Delta ABC, r1 r2 =r r3 =

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  18. In Delta ABC , if (1- (r1)/(r2)) (1- ( r1)/( r3)) = 2, then the tria...

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  19. ( ( 1)/(r1) + (1)/(r2)) ((1)/(r2) +(1)/(r3))( (1)/(r3)+(1)/(r1)) =

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  20. Which of the following statement is true : Statement -I : In Delt...

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