True.
The square root of 12: √12 = 3.464101......
This continues indefinitely and can not be represented as a ratio of two integers.
So it is not rational, that is irrational.
2 goes into 400, that is

,
However, 2 goes into 400,
200 times.
Answer:
5cm in the diagram
Step-by-step explanation:
30/6=5