First. we use the Pythagorean theorem:

Add the numbers in

start simplifying


So, the leg has a length of 40 mm.
Answer:
Answer: 5/9 as a decimal is 0.556.
I don't really know what the question was, but I am guessing that it is 20% times 45. The answer I got was 9. I hope this helps, sorry if not. c;
Answer:
less than
Step-by-step explanation: