I hope this helps you
3) tanO=5/5=1
sinO=square root of 5
cosO=square root of 5
4) tan25=0,47
5)
x=7square root of 3/3
x nearest 4
9)
square length is 18
diagonal is 18 square root of 2
10)
100^2=(7k)^2+(24k)^2
10000=625k^2
k^2=16
k=4
smallest=7k=28
largest=24k=96
