Jen is making a frame to stretch a canvas over for a painting. she nailed four pieces of wood together at what she believes will be the four vertices of a square. how can she be sure that the canvas will be a square?
a. all four of the pieces of wood are the same length & at least two interior angles are congruent.
b. at least two pieces of wood are the same length & at least two interior angles are congruent.
c. at least two pieces of wood are the same length & all four interior angles are congruent.
d. all four of the pieces of wood are the same length & all four interior angles are congruent.