Question

Is the following shape a rectangle? how do you know?

Answer 1

C.

Explanation:

The sides are the same lengths and it 90 degree angles

Answer 2

Slope of AB = 1/3 and slope of BC = -3 so these 2 lines are perpendicular
The same is true for all the other adjjacent pairs of lines.
Oppoitse lines are also paralllel ( slope of AB = 1/3 and slope of DC = 1/3) and other pair are both of slope -3.

So Its C