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(a) एक त्रिभुज के तीनों कोणों का योग = $180 degree$

$straight m angle 1 space plus space 30 degree space plus space 90 degree space equals space 180 degree straight m angle 1 space plus space 120 degree space equals space 180 degree straight m angle 1 space equals space 180 degree space minus space 120 degree space equals space 60 degree straight x space plus space 90 degree space equals space 180 degree equals space 180 degree space minus space 90 degree space equals space 90 degree straight y space plus space straight m angle 1 space equals space 180 degree straight y space plus space 60 degree space equals space 180 degree straight y space equals space 180 degree space minus space 60 degree space equals space 120 degree straight z space plus space 30 degree space equals space 180 degree straight z space equals space 180 degree space minus space 30 degree space equals space 150 degree straight x space plus space straight y space plus space straight z space equals space 90 degree space plus space 120 degree space plus space 150 degree space equals space 360 degree$
(b) एक चतुर्भुज के कोणों का योग = $360 degree$

$straight m angle 1 space plus space 120 degree space plus space 80 degree space plus space 60 degree space equals space 360 degree straight m angle 1 space plus space 260 degree space equals space 360 degree straight m angle 1 space equals space 360 degree space minus space 260 degree space equals space 100 degree straight x space plus space 120 degree space equals space 180 degree straight x space equals space 180 degree space minus space 120 degree space equals space 60 degree straight y space plus space 80 degree space equals space 180 degree straight y space equals space 180 degree space minus space 80 degree space equals space 100 degree straight z space plus space 60 degree space equals space 180 degree straight z space equals space 180 degree space minus space 60 degree space equals space 120 degree straight m angle 1 space plus space straight w space equals space 180 degree straight w space equals space 180 degree space minus space straight m angle 1 straight w space equals space 180 degree space minus space 100 degree space equals space 80 degree straight x space plus space straight y space plus space straight z space space plus space straight w space equals space 60 degree space plus space 100 degree space plus space 120 degree space plus space 80 degree space equals space 360 degree$

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चतुर्भुजों को समझना

Some More Questions From चतुर्भुजों को समझना Chapter

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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