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Centre angle from arc length

Find di centre angle and chord of a circle from measured arc length.

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Your numbers

Calculations dey happen locally. Results na estimates, no be professional advice.

Di angle for di centre

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Use consistent units. Result follow the assumptions wey you enter.

Formula

Use θ = s/r and c = 2r sin(θ/2). s na arc length and r na radius for di same unit. θ na radians before conversion to di degrees wey result show; c na chord length.

Find di centre angle and chord of a circle from measured arc length.

Example wey show the calculation

Di radius (m)
3
Di arc length (m)
3.141592653589793
Di angle for di centre
60 °
Length of di chord
3 m

Where e fit work and limits

Use consistent units. Result follow the assumptions wey you enter.

We check inputs for missing values and allowed ranges. Result wey pass the finite numeric range no go show. Rounding affect wetin display, while calculation use the model numeric precision.

Check your units and assumptions before you rely on result. Changing label no convert currency or physical unit.

Version of di formula: b97076892448 · Example don get check:

Method

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