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nitin bhutada from bhavans b p vidya mandir trimurti nagar nagpur, Nagpur
Subject :IMO    Class : Class 7

Find the sum of the number of diagonals drawn from one vertex of a polygon of 13 sides and the number of diagonals drawn from the adjacent vertex of that vertex of the same polygon.

A11
B26
C22
D19


the answer should be 20 as from each vertex there should be n-3 or 10 diagonals so from 2 vertices there should be 20 diagonals

Ans 1:

Aniket Patankar from Symbiosis International School, Pune
Class : Class 8
it should be 20 because the formula for number of diagonals from a vertices is n-3, so for one vertice is 10 diagonals so two is gonna be 20

Ans 2:

SATYAPRAKASH KAR from LUMBINI PUBLIC SCHOOL , BHUBANESWAR
Class : Class 7
If the answer is 22 then the polygon should be 14 sided.

Ans 3:

Rohan A Gowda from Jnana Sagara International Public School, Channarayapatna
Class : Class 7
Answer is 20

Ans 4:

Abhjith S Kumar from Airport Senior Secondary school Karipur, Kozhikode Intl. Airport, Kozhikode Airport
Class : Class 9
THE ANSWER SHOULD BE 20.

Ans 5:

Diptanil Sadhukhan from T.T.Dr.B.C.Roy Vidyalaya, Kolkata
Class : Class 7
Really it will be 20

Ans 6:

Aditya Sai Vemparala from Amanora school, Pune
Class : Class 10
The answer should be 20

Ans 7:

ARNAV VIVEK PATIL from Podar International School Chalisgaon, Chalisgaon
Class : Class 7

Ans 8:

AKSHIT CHHABRA from APEEJAY SCHOOL NOIDA, NOIDA
Class : Class 8
answer should be 20

Ans 9:

Rick Banerjee from Calcutta Boys School, Kolkata
Class : Class 8

Ans 10:

Aniket Patankar from Symbiosis International School, Pune
Class : Class 8

Ans 11:

Ramya from brindavan vidyalaya, Trichy
Class : Class 9
ANSWER MUST BE 20 SINCE FORMULA IS N-3 SO FOR ONE VERTICE IT IS 10 SO TWO WILL BE 20

Ans 12:

Arnav Kharche from Vibgyor High Jakkur, Bangalore
Class : Class 7
It should be 20

Ans 13:

Bhagyesh Kamal from DPS, Mumbai
Class : Class 8

Ans 14:

Hardik Khilnani from DPS Bangalore North, Bangalore
Class : Class 7
Number of diagonals drawn from polygon of n sides is n-3Thus, answer should be 2(13-3) = 2*10 = 20

Ans 15:

ARNAV VIVEK PATIL from Podar International School Chalisgaon, Chalisgaon
Class : Class 7

Ans 16:

Sarang Shete from Amanora School, Pune
Class : Class 8
ans is 20!!

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