How do I show that the points -LSB- math -RSB- -LRB- 3 , -1 -RRB- , -LRB- 5 , 4 -RRB- , -LRB- -5 , 8 -RRB- -LSB- / math -RSB- and -LSB- math -RSB- -LRB- -7 , 3 -RRB- -LSB- / math -RSB- are the vertices of a rectangle and draw a rectangle ?
How do I show that the points -LRB- 5,4 -RRB- , -LRB- -5,8 -RRB- , -LRB- -7,3 -RRB- and -LRB- 3,-1 -RRB- are the vertices of a rectangle ?