30 inches
Yes, it is world wide
Only as a descripted term, such as "the baserunner should not go wide of the bag when rounding the bases", or, "pitcher should go wide (pitch outside) to this hitter".
Soccer is the most popular sport world wide.
I have found various answers all over. No official dimensions exist but plent of leagues play by it. Some manufacturers call it a "mat" or a "home plate extension" or a "carpet." One league even mandates a gap the size of a softball between the mat and the plate. I'm making my own and we won't be playing with a gap. So, the dimensions I have decided to use to make my own are 17" wide (same as home plate) and 26" long. The notch in it is 8.5" deep to match the shape of the plate. The new total rectangle dimentions including home plate thus will be 17" wide by 34.5" long (8.5" side edge length of the plate + 26" extension).
There are numerous listings online that will provide you will a variety of quotes. The best bet would be to visit a webpage that is dedicated to the sport of softball.
3 feet by 7 feet
You find slow water in a river where it is deep and/or wide and the land is relatively flat.
This is for stability.
one
Strike Zone The strike zone is from the knee to shoulder of the batting softball player. The strike zone also extends as wide as a normal swing. A strike is called if the ball passes through the strike zone and reaches the catcher. The softball umpire will also call a strike if a batter swings and misses at a pitch outside the strike zone. Three strikes result in a batter being called out by the softball umpire. A ball is called for all pitches that miss the strike zone. Four balls allow a batter to walk to first base uncontested. Outfield These 3 zones are short, middle, and long. In the outfield.
A cricket pitch is 10 feet (3 m) wide.
A ice hockey pitch!