# How big is the Earth's radius?

The radius of the earth is 6378 km, or 3,963 miles, when measured from the center of the earth to the equator; scientists call this the "equatorial radius." When measured from the center of the ear...
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http://www.answerbag.com/q_view/2131761

## What does hinge radius mean?

A door hinge with a radius means that the corner of the hinge is slightly rounded instead of square. Two popular dimensions for the radius are 1/4-inch and 5/8-inch.References:Direct Door Hardware:...
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http://www.answerbag.com/q_view/2207348

## How to Calculate Radius on a Map?

Drawing a circle around a single point on a map creates an area. The distance from the middle of the circle to the edge of the circle is the radius. The radius shows how far a point is in a strai...
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http://www.ehow.com/how_6353259_calculate-radius-map.html

## What is the radius of an NBA basketball?

Measurements for basketballs are given in terms of circumference. The official diameter of an NBA basketball is 29.5 inches. Using the mathematical equation of circumference equals two times the ra...
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http://www.answerbag.com/q_view/2019326

## How to Calculate the Radius?

Calculating the radius of a circle is a very basic technique that finds the distance between the center of the circle to the circumfrence/ boundary

http://www.wikihow.com/Calculate-the-Radius