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चतुर्भुजों को समझना

Question
CBSEHHIMAH8003714

निम्नलिखित आकृतियों में x का मान ज्ञात कीजिए:

Solution

(a) बहुभुज के बाह्य-कोणों का योग =  360 degree

therefore space 125 degree space plus space 125 degree space plus space straight x space equals space 360 degree

250 degree space plus space straight x space equals space 360 degree

straight x space equals space 360 degree space minus space 250 degree space equals space 110 degree

(b)  because space straight x space plus space 90 degree space plus space 60 degree space plus space 90 degree space plus space 70 degree space equals space 360 degree
straight x space plus space 310 degree space equals space 360 degree

straight x space equals space 360 degree space minus space 310 degree space equals space 50 degree

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