Developed along waterways so that settlers could have access to water for crops and food
Answer: x=9
Explanation:
(2x)^2 + (x^2)=45
4x^2 +x^2=45
5x^2=45
x^2=9
x=9
Draw a picture to help you!
Please feel free to ask if you have any questions or if that was not what you were looking for:)