Question

What is the answer? I need help

Answer 1

10

Explanation:

Square root of 74 is 8.6.

Using the pythagoras theorem,

7²+x²(half)=8.6²

49+x²(half)=74

x²=25, x=5

Now we found the half of x, we are going to add the other side which is 5+5=10