Claire is designing a banner that will hang in her classroom. The length of one diagonal of the banner is 48 inches, and the sides are 25 inches long. Is the banner a square?
Answer
A
It is not a square because opposite angles are not congruent.
B
It is not a square because the angles at the vertices are not right angles.
C
It is a square because all the sides are congruent.
D
It is a square because the diagonals are perpendicular.