Question

Three angles of a quadrilateral are 65 degree 115 degree and 60 degree. find the fourth angle .​

Answer 1

Answer:

Let the fourth angle be x. We know that sum of all angles of a quadrilateral is 360. Therefore, 65+115+60+x= 360. ... Hence the fourth angle is 120

Answer 2

Answer:

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Step-by-step explanation:

Let the fourth angle be x. We know that sum of all angles of a quadrilateral is 360. Therefore, 65+115+60+x= 360. ... Hence the fourth angle is 120