Multiple choice general knowledge

What is the actual size of the tennis ball

  1. 6.7CM

  2. 6.8CM

  3. 6.6CM

  4. 6.4CM

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A standard tennis ball has a diameter of approximately 6.7 centimeters, as defined by the International Tennis Federation (ITF) official rules. This size ensures consistent bounce and playability across professional and recreational tennis. Options C (6.6cm) and D (6.4cm) are too small, while 6.8cm is slightly larger than regulation size.