4 calculators in this category
- Pythagorean Theorem Calculatora² + b² = c² relates the three sides of any right triangle, and this calculator runs it in all three directions…
- Right Triangle Calculator (SOHCAHTOA)A right triangle is fully determined by any two of its parts other than the two acute angles, and this calculator solves it…
- Law of Sines CalculatorThe law of sines says every side of a triangle bears the same ratio to the sine of its opposite angle, and that single equality…
- Law of Cosines CalculatorThe law of cosines solves the two triangle cases the law of sines cannot start from: two sides with the angle between them…
Which one do you need?
- Pythagorean Theorem Calculator
- Solve for the hypotenuse or a missing leg of a right triangle, or check whether three measured lengths form a true 90-degree corner, step by step.
- Right Triangle Calculator (SOHCAHTOA)
- Solve a right triangle from any two parts: both legs, a leg and the hypotenuse, or a side and an angle. Returns all sides, angles, area and altitude.
- Law of Sines Calculator
- Solve triangles with the sine rule from two angles and a side, or two sides and a non-included angle, with both answers shown in the ambiguous case.
- Law of Cosines Calculator
- Solve a triangle with the law of cosines: find the third side from two sides and the included angle, or every angle from three sides, with steps shown.