Question 1111733
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<pre>
The sum of interior angles of a pentagon is equal to (5-2)*180 = 3*180 = 540 degrees.


It gives you an equation

110° + 99° + 98° + 121° + x = 540°


for the missed 5-th angle, which implies

x = 540 - (110 + 99 + 98 + 121) = 112 degrees  <U>ANSWER</U>.
</pre>

Solved.


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For many other solved problem on missed angles see the lesson

&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>

in this site.