solve it plz ......... ....
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KAS11:
its maths paper of 2014, right
na
its ques. from Fiitjee Book
Four year classroom program
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see figure ,
ABED and BCFE both are cyclic quadiratral .
for ABED
angle DAB + angle DEB = 180°
< 1 + < 2 = 180 ° -------(1)
also ,
angle BEF + < 2 =180° ----------(2)
for , BCFE
angle BEF + < 3 = 180° -------------(3)
from equation (1) , (2) and (3)
< 1 + < 3 =180°
according to concept of parallel
AD || CF
ABED and BCFE both are cyclic quadiratral .
for ABED
angle DAB + angle DEB = 180°
< 1 + < 2 = 180 ° -------(1)
also ,
angle BEF + < 2 =180° ----------(2)
for , BCFE
angle BEF + < 3 = 180° -------------(3)
from equation (1) , (2) and (3)
< 1 + < 3 =180°
according to concept of parallel
AD || CF
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