Question

Among the four angles of a quadrilateral three of them are 50, 120 and 90 respectively then find the fourth angle​

Answer 1

Answer:

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Answer 2

Answer:

x = 100°

Step-by-step explanation:

let the unknown angle be x

We know that,

$\footnotesize\mathcal{Sum \: of \: all \: angles \: in \: a \: quadrilateral = \: 360°} \:$

=> 50 + 120 + 90 + x = 360

=> 260 + x = 360

$\mathcal{=> x = 100}$