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In a polygon, no three diagonals are ...

In a polygon, no three diagonals are concurrent. If the total number of points of intersection of diagonals interior to the polygon is 70, then the number of diagonals of the polygon is a. `20` b. `28` c. `8` d. none of these

A

20

B

28

C

8

D

None of these

Text Solution

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The correct Answer is:
A
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