A c sina or a c cosv b c sinv or b c cosa Given angle and one leg. The formula shown will re-calculate the triangles area using Herons Formula Heron was one of the great mathematicians of antiquity and came up with this formula sometime in the first century BC although it may have been known earlier. Calculate the length of sides of a right triangle using Pythagorean theorem c a b.
A c sina or a c cosv b c sinv or b c cosa Given angle and one leg.
As you can see it is pretty simple to use the Pythagorean Theorem to find the missing side length of a right triangle. The formula shown will re-calculate the triangles area using Herons Formula Heron was one of the great mathematicians of antiquity and came up with this formula sometime in the first century BC although it may have been known earlier. It follows that any triangle in which the sides satisfy this condition is a right triangle. If the sides of a triangle are a b and c and c is the hypotenuse Pythagoras Theorem states that.