Answer:
40°, 95°, 105°, and 160°
Step-by-step explanation:
Let the smallest angle be x.
Measures of the 3 angles can be expressed as:



The sum of all angles in a quadrilateral = 360°.
Therefore, 
Solve for x






The smallest angle = 40°
Plug in the value of x in the earlier stated expressions to find the measure of the other angles:



9514 1404 393
Answer:

Step-by-step explanation:
The interval of interest becomes the limits of integration. ∆x becomes dx, and the xi are replaced by the variable of integration, x.