Central angle of a circle calculator

Geometry calculator solving for circle central angle given arc length and radius. Click CALCULATE and your answer is 14. Circle Sector, Segment, Chord and Arc Calculator.

Click here for the formulas used in this calculator. For angles in circles formed from tangents, secants, radii and chords click here.

You can also use the arc length calculator to find the central angle or the radius of the circle.

Simply input any two values into the appropriate boxes and watch it .

You can find out the value of angle which an arc creates at the center of the circle ( central angle ), with length of radius and arc known. On the picture: L - arc length h- height c- chord. If you know radius and angle you may use the following formulas to calculate remaining segment parameters: . The sector represents of the circle. Provided are the space where you are supposed to enter the value of arc length and radius to get the angle.

Before dealing with the problems let us study how to find the central angle. Convert from degrees to radians. Put the values for radius (r) and theta (Θ) and calculate the area of the sector.

Calculate the sine, cosine and tangent of entered degrees. The central angle is the smaller of the two at the center. It does not mean the reflex angle ∠AOB.

As you drag the points above, the angle will change to reflect this as it increases through 180° . Why are measurements inaccurate at times? Drag Points Of Circle To Start Demonstration. Arc, Segment, Sector Calculator , △. The three different example have you find arc length, central angle , and radius of circles. Multiply your values to calculate the chord length. Remember that central angle must be in . For example, if the central angle is 1degrees, you will divide 1by 36 to get 0. The area of the sector is about percent of the area of the whole circle.

Definition of arc length and formula to calculate it from the radius and central angle of the arc. Given the radius and central angle. Solving for circle segment chord length.

Equation is valid only when segment height is less than circle radius.