Lesson: Applications of Quadratic Equations

The length of a rectangle is 2 cm more than its width. If its area is 80 cm², what are its length and width?

The side length of a square is cm, and the dimensions of a rectangle are cm and 2 cm. Given that the sum of their areas is 8 cm², determine the perimeter of the square.

A rectangular photograph measuring 6 cm by 4 cm is to be displayed in a card mount in a rectangular frame, as shown in the diagram.

Which of the following equations can be used to find if the area of the mount is 64 cm²?