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In Delta ABC, if 2R + r = r(2) then angl...

In `Delta ABC`, if `2R + r = r_(2)` then `angleB =`

A

` (pi )/(3) `

B

` ( pi)/(4)`

C

` ( pi )/( 6) `

D

` ( pi )/(2)`

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The correct Answer is:
D
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AAKASH SERIES-PROPERTIES OF TRIANGLES-EXERCISE - 1
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