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Home > चतुर्भुजों को समझना

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चतुर्भुजों को समझना

Question
CBSEHHIMAH8003902
Wired Faculty App

straight m angle straight C ज्ञात कीजिए यदि space space stack A B with bar on top space space parallel to stack italic space D C with bar on top है।

Solution
Short Answer

∵ क्योंकि space space AB with bar on top space space parallel to stack space DC with bar on top space और space BC इनको प्रतिच्छेदित करता है।
∴  straight m angle straight B space plus space straight m angle straight C space equals space 180 degree

straight m angle straight C space equals space 180 degree space minus space straight m angle straight B

∴ m angle C italic space equals space 180 degree space minus space 120 degree (∵ space space angle straight B space equals space 180 degree )

straight m angle straight C space equals space 60 degree


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Some More Questions From चतुर्भुजों को समझना Chapter


तालिका की जाँच कीजिए: ( प्रत्येक आकृति को त्रिभुजों में बाँटिए और कोणों का योगफल ज्ञात कीजिए )

आकृति

भुजा

3

4

5

6

कोणों का योगफल

180°

2 x 180°

= (4 - 2) x 180°

3 x 180°

= (5 - 2) x 180°

4 x 180°

= (6 - 2) x 180°


एक बहुभुज के कोणों के बारे में आप क्या कह सकते हैं जिसकी भुजाओं की संख्या निम्नलिखित हो?

(a) 7    (b) 8     (c) 10    (d) n

सम बहुभुज क्या है?

एक सम बहुभुज का नाम बताइए जिसमें

(i) 3 भुजाएँ   (ii) 4 भुजाएँ    (iii) 5 भुजाएँ हों।

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