How do I figure out if these two objects are similar?
For my online class (FLVS Geometry Honors) I have to do a project where I take an object and make a dilation of the object, then make a proof. The object is a chair and I was wondering if I could use the 'rectangle' the chair makes up from a side view as proof. Even then, how do I show that two rectangles are similar? All I have so far is:
AB=CD
BC=AD
A,B,=C,D,
B,C,=A,D,
reason: definition of a rectangle.
what else do I need?

Question

How do I figure out if these two objects are similar?
For my online class (FLVS Geometry Honors) I have to do a project where I take an object and make a dilation of the object, then make a proof. The object is a chair and I was wondering if I could use the 'rectangle' the chair makes up from a side view as proof. Even then, how do I show that two rectangles are similar? All I have so far is:
AB=CD
BC=AD
A,B,=C,D,
B,C,=A,D,
reason: definition of a rectangle.
what else do I need?