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If in a Delta ABC , r1 =2r2=3r3, then ...

If in a ` Delta ABC , r_1 =2r_2=3r_3, ` then b: c=

A

` 4: 3`

B

` 5: 4`

C

` 2: 1 `

D

` 3: 2 `

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The correct Answer is:
A
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AAKASH SERIES-PROPERTIES OF TRIANGLES-EXERCISE - II
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  2. If in a Delta ABC, r1= 2r2= 3r3, then the perimeter of the triangle ...

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  3. If in a Delta ABC , r1 =2r2=3r3, then b: c=

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  4. If cot ""(A)/(2) = 30 , Cot "" (B)/(2) = 50 , Cot "" ( C)/(2) = 70...

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  6. A ladder of 20 mt long reaches a point 20 mt below the top of a flag s...

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  9. A flag staff stands vertically on a pillar. The height of the flag sta...

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  10. A tower subtends angles alpha, 2alpha, 3alpha at A,B and C all lyin...

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  11. The upper (3)/(4) the portion of a vertical pole subtends an angle...

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  12. A vertical pole subtends an angle Tan ^(-1) (( 1)/(2)) at a point ...

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  13. The sides of a right angled trinagles are in A.P., then they are in th...

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  14. The angle of elevation of the top of the tower is 45^(@) on walking up...

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  15. The angle of elevation of a tower from two point which are distance h...

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  16. The upper 3//4 of a ship's mast subtends at a point on the deck whic...

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  17. AB is vertical pole with B at ground level and A at the top. A man fi...

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  18. The angle of elevation of the top of the tower is 45^(@) on walking up...

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  19. The angle of a triangle ABC are in an arithmetic progression . The lar...

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