Answer:
40
Step-by-step explanation:
a^2+b^2=c^2
therefore c^2-b^2=a^2
41x41=1681
9x9=81
1681-81=1600
Sqrt1600=40
Answer:
square root 189 i did the math and google says the same
Step-by-step explanation:
Answer:
21
Step-by-step explanation:



so first do the times
then minus
and lastly plus it