Lines and Angles-Ncert Exemplar-DE∥QR and AP & BP are bisectors of ∠EAB and ∠RBA. show that -Class9

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Lines and Angles-Ncert Exemplar- Class9
In the figure, DE∥QR and AP & BP are bisectors of ∠EAB and ∠RBA, respectively. Show that ∠APB=90
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Wow ma'am how great hardwork ❤....I wish for you success🎉

pratusha_.