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Subject :IMO    Class : Class 6

Find the minimum number of straight lines required to make the given figure.


A16
B17
C19
D21


hmm...……..I think A

Ans 1:

Class : Class 7

Ans 2: (Master Answer)

Class : Class 1

(B):  

​​​​​​​

Straight lines are :
AB, BC, CM, AM, AL, AH, BJ, BD, LJ, LH, JD, KF, GE, ED, GH, FD, FH
∴ Minimum number of straight lines = 17
 


Ans 3:

Class : Class 6
(B): ​​​​​​​Straight lines are :AB, BC, CM, AM, AL, AH, BJ, BD, LJ, LH, JD, KF, GE, ED, GH, FD, FH∴ Minimum number of straight lines = 17 (B): ​​​​​​​Straight lines are :AB, BC, CM, AM, AL, AH, BJ, BD, LJ, LH, JD, KF, GE, ED, GH, FD, FH∴ Minimum number of straight lines = 17 (B): ​​​​​​​Straight lines are :AB, BC, CM, AM, AL, AH, BJ, BD, LJ, LH, JD, KF, GE, ED, GH, FD, FH∴ Minimum number of straight lines = 17

Ans 4:

Class : Class 7

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