The measures of four interior angles of a pentagon are 63º, 119º, 125º, and 116º. which is the measure of the fifth interior angle?

The sum of interior angles of a pentagon is given by:
(n-2)*180
where
n=number of sides
thus the sum of angles in a pentagon will be:
(5-2)*180
=540
hence to evaluate the missing angles we shall proceed as follows:
sum of the given angles is:
63+119+125+116
=423
thus the missing angle, x, will be:
x+423=540
x=540-423
x=117°

117

Step-by-step explanation:

The answer is ab3c where it is not multiplication but digits that the variables are holding for any not neccesarily distinct values of a, b and c. This amounts to 900 possibilities because the first number cannot be a 0. If the first number isn't a 0, the second number can be a 0.