The game of tennis is played on a court 78 feet long by 27
feet wide on a variety of surfaces including clay, grass, carpet and hard.
The court is divided in half by a net over which players must
hit the ball. There are white baselines at each end of the court, where serves are taken and beyond which the ball must not
bounce - if it does, then the ball is out and the hitter loses the point.
Each side is lined with two white marks to indicate the width
of the court. The inner line shows the dimensions for singles play and the outer for doubles play.
Stretching from the net, to halfway down the court, there
is a short white line dividing it into boxes - this is the service court.