Question

Please solve this question fast PLEASE.

Answer 1

Step-by-step explanation:

$in \: the \: following \: fig. = > \\ sum \: of \: a \: and \: b \: will \: be \\ d + e \: \: \: \: ( exterior \: angle \: property)$

$so \: option \: (b) \: is \: correct$

Answer 2

by remote interior angle theorem

the exterior angle is the sum of remote interior angles

here, exterior angle is angle D+Angle E

and sum of remote interior angle is angle A+angle B

angle A+ angle B=angle D+ angle E

hope it will help u

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