Arectangle has a width of 9 units and a length of 40 units. what is the length of the diagonal

Polygon abcde is reflected to produce polygon a′b′c′d′e′. what is the equation for the line of reflection?

What is the area of the original rectangle? 8 cm² 20 cm² 25 cm² 40 cm²

Triangles abc and dfg are given. find the lengths of all other sides of these triangles if: b ∠a≅∠d, ab·dg=ac·df, ac=7 cm, bc=15 cm, fg=20 cm, and df-ab=3 cm.