Question

plzz answer for brainlist​

Answer 1

Answer:

180° l hope you need my answer

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Answer 2

Answer:

all quadrilateral has 4 angle and totally angle of 360°

Let the unknown angle be x

$80 + 80 + 80 + x = 360|$

$240 + x = 360$

$360 - 240 = x$

$x = 120$

$so \: the \: required \: angle \: is \: 120$