Answer:
Rhombus
Explanation:
Apply the formula for finding distance using coordinates to find the length of the sides of the parallelogram
Given the coordinates as;
P(6,-6) , Q(1,1),R(-6,6),S(-1,-1)
Finding the lengths
The formula to apply is;
For PQ where you have : P(6,-6) , Q(1,1)
You can also apply the Pythagorean relationship to get the leg distance and calculate the hypotenuse .For example to get the length of QR ;
QR² = 7²+5²
QR = √49+25
QR = 8.60
You notice all sides are equal , 8.60 units
You also notice the opposite angles are equal
This is a rhombus