Question

pls answer question this

Answer 1

Solution: By using a formula- (x-2)180°
where, x= number of side
So, (x-2)180°
=(5-2)180°
=3 × 180°
= 540°

Answer 2

Hey,

the sum of triangle ABC is 180*

similarly the sum of triangle of BCE AND CDE IS ALSO 180*.

In the given figure,

sum of all anlges of the pentagon = sum of all anlges of all the three trianlges

                                                         = ABC+BCE+CDE

                                                         = 180*+180*+180*

                                                         = 540*

HOPE THIS HELPS YOU

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