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Sine Law for Triangle

Solve triangle from two angles and side wey dey opposite the first angle.

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Your numbers

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

Side wey dey opposite B

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

Formula

Use a/sin(A) = b/sin(B) = c/sin(C) and C = 180°−A−B. Each lowercase side dey opposite di matching uppercase angle. Enter angles for degrees and use di same unit for side lengths.

Solve triangle from two angles and side wey dey opposite the first angle.

Example wey show the calculation

Side wey dey opposite A (m)
5
Angle for A (degrees)
30
Angle for B (degrees)
60
Side wey dey opposite B
8.66025403784 m
Side wey dey opposite C
10 m
Angle for C
90 °

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: f13443b28788 · Example don get check:

Method

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