Question

The three angles of a quadrilateral are 60°, 120° and 130°. Find the measure of fourth angle?
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Answer 1

Step-by-step explanation:

sum of angles in a quadrilateral is 360°

60+120+130+x=360

210+x=360

therefore x=360-210

answer=150°

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Answer 2

Answer:

The sum of all quadrilateral is 360°

So, (60+120+130)°=310°

So

$\frac{360}{ - \: \: \: 310} = 50$

So hence you're answer is

50°