Answer: C.
Step-by-step explanation:
An isosceles triangle is a type of triangle that has two identical sides and angle measures. Knowing that the two sides creating the 44 degree angle are equal, you can also know that both remaining angles are equal.
All three angles in a triangle must add to 180, so you can solve for f through this equation:
2f + 44 = 180
2f = 136
f = 68
