what line divides the court in 2 halves?
centre line
What lines runs parallel to the net?
Short service line (close to net/~2m)
Double/single Long service line (further from net)
What line runs perpendicular to net?
Side lines
Which side/service lines are used for singles?
Singles use narrower court (closer side lines) and longer court (further service line)
Which lines are used for doubles?
Doubles use shorter (closer service line) and wider (further apart side lines) court