D. since if you plug in the Pythagorean therom it comes out true and the Pythagorean therom only works on right triangles. also isosceles have 2 side lengths the same.
65000 that is the right answer
Answer: 46.3
Step-by-step explanation:
Tan = opposite/adjacent
Tan -1 =6.9/6.6
x=46.27
x=46.3
