Sam has an assignment for school where he has to make a rectangular picture frame. But he can't measure any of the angles. What can he do to determine that the shape he made is actually a rectangle? (Hint: what properties of rectangles don't involve angles)

Answer 1

To determine if the shape he made is a rectangle, Sam can examine the following properties of rectangles that don't involve angles:

1. Equal opposite sides: If all four sides of the shape have the same length, it is most likely a rectangle. Sam can measure the lengths of each side using a ruler or any other measuring tool.

2. Equal diagonals: Sam can measure the diagonals of the shape using a ruler or measuring tape. In a rectangle, the diagonals are always equal in length.

By confirming that both the opposite sides and diagonals of the shape have equal lengths, Sam can conclude that the shape he made is indeed a rectangle.