Explanation
We are asked to find the remaining angle in the quadrilateral
A quadrilateral is a closed shape and a type of polygon that has four sides, four vertices and four angles.
If the given angles are: 115, 115, and 70
Then we can get the fourth angle as folllow:
[tex]Total\text{ angle in a quadrilateral is 360 degrees}[/tex]Thus, the fourth angle will be
[tex]115+115+70+x=360[/tex]Solving for x
[tex]x=360-115-115-70=60^0[/tex]Therefore, the remaining angle is 60 degrees
