Question

Which of the following pairs are congruent?

• A. Two $1$ dollar bills
• B. Two pages of the same book
• C. Two mobile phones of the same model
• D. one dollar bill and a stack of 100 one dollars bills

Answer 1

Answer: (A), (B), (C)

Two mobile phones of the same model

Two objects are said to be congruent if they have the same shape and the same size.

In the given options,
(a.) Two $1$ dollar bills have the same shape and size
Thus, they are congruent.

(b.) Two pages of the same book have the same shape and size
Thus, they are congruent.

(c.) Two mobile phones of the same model have the same shape and size
Thus, they are congruent.

(d.) A $1$ dollar bill doesn't have the same shape and size of a stack of 100 one dollars bills.
Thus, they are not congruent.

Hence, options (a.), (b.) and (c.) are correct.