Q:
# What Is One Quarter of a Circle Called?

**One-quarter of a circle is called a quadrant.** According to Reference.com, it is also a 90 degree arc. "Quad" is a prefix that means "fourth."

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Elliot Brown
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There are 360 degrees in a circle. Half of a circle is called a semicircle, and it contains 180 degrees. Whereas there are four quadrants in every circle, there are two semicircles.

The diameter of a circle is a straight line passing through the circle's center and touching the circle at each end. A circle with a horizontal line of diameter and a vertical line of diameter drawn is divided into quadrants. With only one diameter drawn, the circle is divided into semicircles.

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Q:
## What Is the Difference Between a Circle and an Ellipse?

A: A circle is actually a special kind of ellipse where the two focuses are equal. Every ellipse contains two points called a focus. The perimeter of the elli... Full Answer >Filed Under: -
Q:
## How Do You Find the Perimeter of a Circle?

A: To find the perimeter of a circle, also known as the circumference, plug the dimensions of the circle into the formula ((pi)(d). This formula stands for pi... Full Answer >Filed Under: -
Q:
## How Do You Calculate Diameter?

A: To calculate the diameter of a circle, multiply the radius of the circle by 2. Diameter is the measure of the length of a straight line that passes through... Full Answer >Filed Under: -
Q:
## How Do You Find the Diameter of a Circle?

A: Find the diameter of a circle with a given circumference by solving for the formula "d=C/pi," where d is the diameter, C is the circumference and pi is 3.1... Full Answer >Filed Under: