kanwal32
  • kanwal32
The first term of a convex polygon are in AP. The smallest angle is 120 degree and the common difference is 5 degree find the number of sides of the polygon
Mathematics
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SOLVED
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jamiebookeater
  • jamiebookeater
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kanwal32
  • kanwal32
i used the approach that a polygon cannot have an angle 180 degree cause then the polygon will not close i took the last term as 175 degree and used the formula of ap answer is comming 12 but the answer in the testbook is given 9
kanwal32
  • kanwal32
@ganeshie8
kanwal32
  • kanwal32
@Kainui

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kanwal32
  • kanwal32
@paki @ParthKohli
kanwal32
  • kanwal32
@mathslover
kanwal32
  • kanwal32
@hartnn
kanwal32
  • kanwal32
@ganeshie8
kanwal32
  • kanwal32
@Kainui
Er.Mohd.AMIR
  • Er.Mohd.AMIR
two ans are 16 and 9 u find wrong second one since T16=120+(16-1)*5=120+75=195 and angle are not more then 180 so ans is 9 is right.
kanwal32
  • kanwal32
@dan815

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