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## How do you measure the diameter of a baseball?

Measure the baseball from edge to edge with a ruler to get its diameter. Divide the diameter in half to get the radius. According to The Physics Factbook online, the standard diameter for a baseball is about 7.3 centimeters. The radius would be 3.65 centimeters.

## What is the standard size of the ball?

The standard for a basketball in the National Basketball Association (NBA) is 29.5 inches (75 cm) in circumference and for the Women’s National Basketball Association (WNBA), a maximum circumference of 29 inches (74 cm). High school and junior leagues normally use NCAA, NBA or WNBA sized balls.

## What is the diameter of a baseball in CM?

You can tell them that a regulation size baseball is between 7.3 cm and 7.5 cm in diameter.

## What is ball diameter?

The United States Golf Association specifies that a golf ball must weigh no more than 1.620 ounces (45.93g), be spherical in shape and be no less than 1.68-inches (42.7mm) in diameter. This is called “The American Ball”. The “British Ball” is a teensy bit smaller, at 1.62-inches (41.1mm).

## How do you find a diameter?

The formula to find the diameter states the relationship between the diameter and the radius. The diameter is made up of two segments that are each a radius. Therefore, the formula is: Diameter = 2 * the measurement of the radius. You can abbreviate this formula as d=2r.

## What size is a size 3 ball?

Size 3 is the official soccer ball for toddlers and young children. It has a circumference of 23-24 inches and should weight between 11-12 ounce. Size 3 is the smallest official ball for playing actual games.

## How do I measure a ball?

One easy way to measure the “size” of a ball is how far it is from side to side. Your tennis ball example is a good one: a typical tennis ball is about 2.5 inches form side to side. And one way to measure that size is to place the ball on a table in the sunlight when the sun is nearly overhead — close to noon.

## What is the size of a pitching rubber?

The pitching rubber is 24 inches long. Take a pencil and mark a line down the center. Take a string from the apex of home plate and extend it to the second base peg. Measure 60 feet 6 inches from the tip of home plate and sink a spike.