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Finding the missing side or angle couldn't be easier than with our great tool – right triangle side and angle calculator. Choose two given values, type them into the calculator, and the calculator will determine the remaining unknowns in a blink of an eye!
Right triangle calculator to compute side length, angle, height, area, and perimeter of a right triangle given any 2 values. It gives the calculation steps.
You can calculate angle, side (adjacent, opposite, hypotenuse) and area of any right-angled triangle and use it in real world to find height and distances. Enter any two values and press calculate to get the other values
The Right angled triangle formula known as Pythagorean theorem (Pythagoras Theorem) is given by \[\large Hypotenuse^{2}=(Adjacent\;Side)^{2}+(Opposite\;Side)^{2}\] In trigonometry, the values of trigonometric functions at 90 degrees is given by:
We can find an unknown angle in a right-angled triangle, as long as we know the lengths of two of its sides. The ladder leans against a wall as shown. What is the angle between the ladder and the wall? The answer is to use Sine, Cosine or Tangent! But which one to use? We have a special phrase "SOHCAHTOA" to help us, and we use it like this:
A right triangle has one $$ 90^{\circ} $$ angle ($$ \angle $$ B in the picture on the left) and a variety of often-studied formulas such as: The Pythagorean Theorem; Trigonometry Ratios (SOHCAHTOA) Pythagorean Theorem vs Sohcahtoa (which to use)
Use our right triangle calculator to find each side, angle, area, perimeter, height, inradius, and circumradius of a right triangle.