Q .     The angle between the line joining the points`(1,-2),(3,2)` and the line `x+2y-7=0` is

EAMCET 2007
A

`pi`

B

`pi/2`

C

`pi/3`

D

`pi/6`

HINT

Find slop of both line & use `tantheta = (m_1-m_2)/(1+m_1m_2)`
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