I’m sorry this is messy but I hope this is right!! <3
0.542=0.500 + 0.040+0.002
= 
=5 tenth + 4 hundredths + two thousandths
One tenth = 
One Hundredth= 
One thousandth= 
So 29-4 =25... which is a perfect square
Answer= +/- 5
Answer:

Step-by-step explanation:

Hope this helps.
Answer:
5 degrees
Step-by-step explanation: