90 + x + 107 + 144 + 138 = 540
479 + x = 540
x = 540 - 479
x = 61
Answer:
x=61°
Step-by-step explanation:
There are 5 sides in a polygon.
Sum of interior angles = (n-2) times 180
The sum of interior angles in a polygon is 540 degree
Now add all the interior angles and set it to 540
Right angle is 90 degree
Subtract 479 from both sides
x = 3 ± √(5+y) HAVE A GOOD DAY :)
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