एक उत्तल दशभुज में विकर्णों की संख्या कितनी होगी?
How many diagonals are there in a convex decagon?
Explanation opens after your attempt
A. (35)
Concept
The total segments are \( \binom{10}{2} \), and subtracting (10) sides gives (35). For polygons, first count all vertex pairs.
Why this answer is correct
The correct answer is A. (35). The total segments are \( \binom{10}{2} \), and subtracting (10) sides gives (35). For polygons, first count all vertex pairs.
Exam Tip
कुल रेखाखंड \( \binom{10}{2} \) हैं और (10) भुजाएँ घटाने पर (35) बचते हैं। बहुभुज में पहले सभी शीर्ष-युग्म गिनें।
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