Q:
# What Is the Equation for Arc Length?

**The length of an arc of a circle is equal to the angle subtended by the arc, in radians, times the radius of the circle.** For an angle measured in degrees, the arc length is the angle, in degrees, times the radius times pi divided by 180.

An arc is a portion of a circle along its circumference. Drawing lines from the endpoints of the arc to the center of the circle creates an angle, also known as the subtended angle. For most purposes, angles are measured in degrees or radians, with 180 degrees being equal to pi radians. The length of the arc is proportional to the radius of the circle. The larger the circle, the greater the length of the arc. Likewise, the greater the subtended angle, the greater the length of the arc.

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Q:
## How Many Radians Are in a Circle?

A: The number of radians in a circle is equal to 2 pi, or approximately 6.28. Since there are 360 degrees in a circle, each radian is equal to 360 divided by ... Full Answer >Filed Under: -
Q:
## How Do You Bisect an Angle?

A: Draw an arc on the vertex of the angle. Then draw two more arcs from the intersection of the previous arc and the two legs in the interior of the angle. Fi... Full Answer >Filed Under: -
Q:
## How Do You Convert Radians Per Second to Meters Per Second?

A: To convert radians per second to meters per second, multiply theta, the rate of motion in radians per second, by the radius of the arc along which the moti... Full Answer >Filed Under: -
Q:
## How Do You Find the Area of a Sector?

A: To find the area of a sector, divide the angle of the sector by 360 degrees, then multiply the answer by pi and the square of the radius. You need to know ... Full Answer >Filed Under: