Math, asked by meenusaini1282, 4 months ago

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Answered by ranadeepak5255

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Answered by AarchiChhabria

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we know that

sum of all angle of triangle=180°

In ∆ABC

angle A+angle B+angle C =180° ......(eq1)

In ∆DEF

angle D+angle E+angle F =180° .......(eq2)

on adding eq 1 and 2

angle A+B+C+D+E+F =360°(180+180)

HENCE PROVED

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