Answer:
The correct option is B) She can measure the opposite sides. If they are congruent, then the bookshelf is in the shape of a parallelogram. Then she can measure the diagonals. If they are congruent, then the bookshelf as rectangular
Step-by-step explanation:
Consider the provided information.
The property of a rectangle is:
Opposite sides of a rectangle are congruent, and diagonals bisect each other.
Also the diagonals are congruent.
Now consider the provided options
Option A is not the correct option because rhombus and square has the property that all of the sides are same length.
Option B is correct as it follows the property of rectangle.
Option C is not correct because the property of parallelogram is diagonals bisect each other. This option tells us that the figure is a parallelogram but do not specify the type of parallelogram.
Option D is not correct as option A and C are not correct.
Hence, the correct option is B) She can measure the opposite sides. If they are congruent, then the bookshelf is in the shape of a parallelogram. Then she can measure the diagonals. If they are congruent, then the bookshelf as rectangular
