Answer:
Explanation:
Square A:
Area = 225 square feet
side *side = 225
Side =√225
![=√(15*15)](https://img.qammunity.org/2023/formulas/mathematics/high-school/v5jcbi9wph0va8q5arxhmvb97gsdqrn442.png)
Side of square A = 15 ft
Square B:
Area = 400 square feet
Side =√400
=
![√(20*20)](https://img.qammunity.org/2023/formulas/mathematics/high-school/6bcj20iaxf9nqlvmfahroaeve6ct65h0us.png)
Side of square B = 20 ft
Use Pythagorean theorem for finding the side of Square C.
Side of square A is the altitude ; side of square B is the base and side of square C will be the hypotenuse
hypotenuse² = base² + altitude²
= 15² + 20²
= 225 + 400
= 625
hypotenuse =
= 25 ft
Area of square C = 625 square ft
In short,
Area of square C = area of square B + area of square A
= 400 + 225
= 625 square ft