A parallelogram has vertices at the points , , , and with coordinates , , , and respectively.
Work out the perimeter of the parallelogram . Give your solution to one decimal place.
By drawing a rectangle through the vertices of the parallelogram, or otherwise. Work out the area of the parallelogram .
is a parallelogram. The coordinates of the points , , and are , , and respectively. Find the coordinates of .
Calculate, to two decimal places, the area of the parallelogram , where the coordinates of its vertices are at , , , and .