90 - 42 ie 48o
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21 degrees
this is what i have: X= 6+(90-X)+2(90-X) and i got 42 degrees?
Each exterior angle is 360/42 = 8.571429 degrees So each interior angle is 180 - 8.571429 = 171.4286 degrees.
96˚all angles to a triangle equals 180˚
If you are dealing with an isosceles triangle, if one of the base angles measures 42 degrees then the other base angle measures 42 degrees. (By definitioin an isosceles triangle has at least 2 equal sides and the angle opposite those sides with be equal.) If you add up the degrees in each angle within a triangle, it will always equal 180 degrees. Knowing all this you can set up a formula: Angle 1 + Angle 2 + Angle 3 = 180 42 + 42 + Angle 3 = 180 Angle 3 = 96 degrees