Given ABCD is a rectangle. Prove: 4.4BC = ACDA
S
B
A
D
1. ABDC is a rectangle
1. Given
2. Definition of a rectangle.
2. ABCD is a parallelogram
3. AB = DC and BC = DA
3. Opposite sides of a parallelogram are congruent.
4.ACEAC
4.
5. 44BC = ACDA
5
Symmetric Property of :: SAS
Reflexive Property of SAS
Symmetric Property of 3. SSS
Reflexive Property of :: SSS

Abank manager wants to encourage new customers to open accounts with principals of at least $2 comma 500. he decides to make a poster advertising a simple interest rate of 3%. what must the principal be if the bank manager also wants to advertise that one can earn $10 the first month? can the poster correctly say, "open an account of $2 comma 500 and earn at least $10 interest in 1 month! "?