Question

the sum of 3 angles of quadrilateral is 5 times​

Answer 1

=> x + y + z = 5a

Now, sum of all the angles in a quadrilater = 360

=> x + y + z + a = 360

=> 5a + a = 360

=> 6a = 360

=> a = 360/6

=> a = 60

So, the fourth angle is 60 degree.

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Answer 2

Here is your answer

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Now sum of
All the angles in a quadrilateral = 360

X + y+ z + a = 360

5a + a = 360

6a = 360

A=360/6

A= 60

So the fourth angle is 60 degrees

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