The coordinates of a rectangle are given by the points A (1,1), B (7,1), C (7,3) and D (1,3 ).
Draw the figure in a coordinate system and calculate the perimeter of the rectangle ABCD.
Point T lies on side AB, so that ratio 
, and point S bisects side BC. Draw the points T and S in the given coordinate system and calculate the length of the line TS.
Rectangle ABCD represents the body surface area of the prism with an equilateral triangle base. If the height of the prism is h = 2, calculate the volume of the prism.
