Question 1041695
.
Missed angle of an n-sided polygon is equal to (n-2)*180 minus the sum of known (n-1) interior angles.
In you case it is 


(6-2)*180° - (100° + 110° + 115° + 134° + 140°).


For details, see the lessons 

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=http://www.algebra.com/algebra/homework/Points-lines-and-rays/Solved-problems-on-angles-of-a-polygon.lesson>Solved problems on angles of a polygon</A>

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=http://www.algebra.com/algebra/homework/Points-lines-and-rays/Solved-problems-on-missed-angle-of-a-polygon.lesson>Solved problems on missed angle of a polygon</A>

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=http://www.algebra.com/algebra/homework/Points-lines-and-rays/Solved-problems-on-angles-of-a-regular-polygon.lesson>Solved problems on angles of a regular polygon</A>

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=http://www.algebra.com/algebra/homework/Points-lines-and-rays/OVERVIEW-of-solved-problems-on-angles-of-triangles-quadrilaterals-and-polygons.lesson>OVERVIEW of solved problems on angles of triangles, parallelograms, quadrilaterals and polygons</A>

in this site.