Triangle Calculators

30 60 90 Triangle Calculator How to solve the 30 60 90 triangle? What are the 30 60 90 triangle rules? The 30 60 90 triangle calculator is a safe bet for your geometry problems! 45 45 90 Triangle Calculator How to solve the 45 45 90 triangle? What are the 45 45 90 triangle rules? The 45 45 90 triangle calculator has the answers! Area of a Right Triangle Calculator How to find the area of a right triangle? What's the area of a right triangle formula? Check it out with this area of a right triangle calculator. Circumscribed Circle Calculator The circumscribed circle calculator will help you study the circumradius as well as other properties of the circle circumscribed about a triangle. Classifying Triangles Calculator The classifying triangles calculator can help you determine the name of a triangle based on the lengths of its sides or the sizes of its angles. Equilateral Triangle Calculator Find out what's the height, area, perimeter, circumcircle, and incircle radius of the regular triangle with this equilateral triangle calculator. Heron's Formula Calculator What's the Heron's area formula? What's the Heron's formula proof? Find out with this Heron's formula calculator! Hypotenuse Calculator How to find the hypotenuse of a right triangle? What is the hypotenuse of a right triangle formula? Answer these questions with this hypotenuse calculator. Isosceles Triangle Calculator This isosceles triangle calculator can help with your geometry problems, finding area, height, angles, perimeter, or many other parameters. Give it a try! Perimeter of a Triangle Calculator How to find the perimeter of a triangle? What's the perimeter of a triangle formula? Find out with this perimeter of a triangle calculator! Pythagorean Theorem Calculator The Pythagorean theorem calculator helps you find out the length of a missing leg or hypotenuse of a right triangle. Pythagorean Triples Calculator This Pythagorean triples calculator can check if three given numbers form a Pythagorean triple and also generate Pythagorean triples via Euclid's formula! Right Triangle Calculator The right triangle calculator helps you find the sides and area of a right triangle. Right Triangle Calculator Solve a right triangle from any two sides — angles, area and perimeter. Right Triangle Side and Angle Calculator How to find the missing side or angle of a right triangle? We have the answer! Check it with our right triangle side and angle calculator. Similar Triangles Calculator Use this similar triangles calculator to check whether two triangles are similar or to find the missing length of a similar triangle. Special Right Triangles Calculator What are the special right triangles formulas? How to solve special right triangles? Check out this special right triangles calculator! Triangle Angle Calculator How to find the angle of a triangle? What's the sum of angles in a triangle? Check it out with this triangle angle calculator! Triangle Area Calculator Whether you have the base and height of the triangle, three sides, side-angle-side, or angle-side-angle, this versatile triangle area calculator will find the area of a triangle for you. Triangle Height Calculator How to find the height of a triangle? What is the height of a triangle formula? Check out this triangle height calculator! Triangle Inequality Theorem Calculator The triangle inequality theorem calculator is here to check whether the three line segments can make up a triangle or not.