Legal notice

Side-Side-Side (SSS): all three sides are known. The law of cosines gives each angle.
Side-Angle-Side (SAS): two sides and the angle between them. The law of cosines gives the third side.
Angle-Side-Angle (ASA): two angles and the side between them. The third angle is 180° minus the other two, then the law of sines gives the other sides.
Angle-Angle-Side (AAS): two angles and a side that is not between them. Solved the same way as ASA.
Side-Side-Angle (SSA): two sides and an angle that is not between them. The law of sines gives a second angle, but zero, one or two triangles can fit.

固定計算値

角度

単位小数点以下

リセット

値

辺

角

常に3つの値が固定されています。新しい値を入力するとその値も固定され、最も古い固定が解除されます。sqrt(2) や 3/4 のような式も使えます。