Math, asked by biss3851, 1 month ago

Please help me with this question

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Answered by kumarraghav9835
1

Step-by-step explanation:

in ∆ADC,angle 1+2+D=180°

and in ∆ABC,angle2+4+B=180°

so , SUM of all angels of figABCD=∆ADC+∆ABC=360°

PROVED

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