Angle Basics, SM-Bank 005 MC The value of `x` in the diagram above is `89` `90` `91` `101` Show Answers Only `C` Show Worked Solution `y^{\circ}` `= 180-89\ \ text{(cointerior angles)}` `= 91°` `:. x^{\circ}` `= 91°\ \ text{(vertically opposite angles)}` `=> C`
