Answer:
x = 9.2
Step-by-step explanation:
Use Pythagorean Theroem to find the lenght of x
a^2 + b^2 = c^2
6^2 + 7^2 = x^2
36 + 49 = x^2
85 = x^2
then find the square root of 85 which is 9.2
Answer attached
With reference to my figure
Shape 1 = square
Shape 2 = rectangle
4.56
Hope this helps. :)