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Chapter 4: Random Questions
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In this chapter, Binati has discussed some random questions.

Binati Sheth
An Avid Reader. A Teacher. An Aid worker. An Engineer (E&C). A Writer. Budding Art Connoisseur. A philomath. A Shōnen Otaku.

Comments
(1)
U
Unacademy user
ye kya pdha rhe ho sir ji , laxmi bai k beta to itna bada b ni hua t ki usse raj gaddi sambhale k moka mile , or uska naam damodar tha
Arif khan
6 months ago
Beta raja bana k uske care taker k taur pe uski mother rajya sambhalti, jaise akbar k piche bahram khan they
Rs
mam q3 is not clear please elaborate.
Binati Sheth
a year ago
Can you be a little more specific with the doubt?
Binati Sheth
a year ago
1. If you take a polygon with n=6 sides or what is called a hexagon, how many triangles can you draw that will have two sides in common - try doing it on paper - it will be 6 or n
Binati Sheth
a year ago
2. Try taking a simpler polygon like a square which has n=4. You only need one side in common. For triangles, you need 3 points that are not next to each other. try that out on a hexagon as well
Binati Sheth
a year ago
3. nC3 is you have n sides of a polygon and you need 3 points not on the same line to form a triangle - nC3 will give you the total number of triangles using n points (not sides)… You need no side in common so substract case 1 and case 2 from nC3
Rs
Rahul sharma
a year ago
thanks mam. actually language of question was not clear.
Binati Sheth
a year ago
Ohh - take any n sided polygon; how many triangles can you make based on the following conditions