Answer:
x = 102°
Explanation:
Given that 2 of the sides are congruent ( both 3.3 ) then the triangle is isosceles and the base angles are congruent ( both 39 )
The sum of the 3 angles in a triangle = 180° , thus
x = 180 - ( 39 + 39) = 180 - 78 = 102°