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2 votes
Help please ! Geometry !

Help please ! Geometry !-example-1
User Nikoshr
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2 Answers

5 votes
I think its 158 according to an articale i read
User Zeekstem
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3 votes
A quadrilateral's angles always add up to 360 degrees. So you add the angles you have 24+100+78=202 and then subtract that from 360 which will give you 158
User Gur Dotan
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