Answer:
0.2
Step-by-step explanation:
We need to have


Integrate the first PDE with respect to
:

Differentiate with respect to
to get


So we have

which means
is indeed conservative.
Answer:The solution is in the attached file
Step-by-step explanation:
The sum of all angles in a triangle is 180 degrees
Our given angles 55+45+90=190 degrees
We can make 0 triangles with those given angle measurements.