We can see that this must be a triangle because we can see that this is a right triangle with one given measurement, 30° The unmarked angle must then be 60° Since 18 is the measure opposite the 60° angle, it must be equal to $x√3$Right Triangle Calculator Although all right triangles have special features – trigonometric functions and the Pythagorean theorem The most frequently studied right triangles , the special right triangles, are the 30, 60, 90 Triangles followed by the 45, 45, 90 trianglesIn a 30 60 90 special right triangle the hypotenuse is always equal to twice
Special Right Triangles Formulas 30 60 90 And 45 45 90 Special Right Triangles Examples Pictures And Practice Problems