Answer: The answer is 41.23.
Explanation:
You have to find the hypotenuse of the triangle so we are going to use the formula a^2+b^2=c^2.
The first thing we need to do is substitute 40 and 10 in for a and b which would give you 40^2+10^2.
Next you will multiply 40x40 and 10x10 which gives you 1600+100.
Lastly you want to add these together to get 1700 and then you can just search up square root of 1700 and you get 41.23.
Hope this helps!!