Answer:
Step-by-step explanation:
Alright, lets get started.
Please refer the diagram I have attached.
Two angles are given as 30 and 40 degrees.
The third angle we could find by subtracting both angles from 180.
So, third angle would be = 
As we can see, there is no side which is equal to each other.
Similarly, there is no angle which is similar to each other.
Hence the triangle is Scalene triangle. : Answer
Hope it will help :)