Question

The three angles of a quadrilateral are 60,80,and120.Find the four angle


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Answer 1

Answer:

100°

Step-by-step explanation:

Let the four angle be x

We know that ,

Sum of all angles of quadrilateral = 360

=> 60 + 80 + 120 + x = 360

=> 260 + x = 360

=> x = 100

Required angle = 100

Answer 2

Answer:

we know that

sum of all angles of a quad is 360 degree

=>sum of 3 angles + 4th angle =360

=>4th angle =360-260

=>100 degree

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