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CBSE Class 9 Answered

HOW TO DO THIS?
Asked by anandgoyal | 26 Jul, 2008, 10:47: AM
answered-by-expert Expert Answer

                   AB  and  CD  are parallel , P isany point  on the line  joining   B and D

 now , ABP + CDP =   180 degrees .  the sum of the pair of  interior  angles equal = 180 

  the DPB   is a straight  angle  = 180  degrees

  Therefore   ABP + CDP = DPB

Answered by | 28 Jul, 2008, 02:03: AM

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