Online triangle calculator

Please provide 2 values below to calculate the other values of a right triangle.

The triangle calculator finds all triangle measurements — side lengths, triangle angles, area, perimeter, semiperimeter, heights, medians, inradius, and circumradius. The triangle calculator is an online triangle solver allowing you to find all triangle measurements based on three known measurements quickly. The calculator takes the lengths of the sides of a triangle and triangle angles as inputs and calculates the following measurements:. The calculator also provides the coordinates of the vertices, the centroid, the inscribed circle center, and the circumscribed circle center, assuming that the coordinates of vertex A are [0, 0]. To use this triangle calculator, enter any three values into the input fields. You can enter the values of any angles or any side lengths.

Online triangle calculator

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! If you are wondering how to find the missing side of a right triangle, keep scrolling, and you'll find the formulas behind our calculator. There are a few methods of obtaining right triangle side lengths. Depending on what is given, you can use different relationships or laws to find the missing side:. If you know two other sides of the right triangle, it's the easiest option; all you need to do is apply the Pythagorean theorem:. If leg a is the missing side, then transform the equation to the form where a is on one side and take a square root:. As we remember from basic triangle area formula , we can calculate the area by multiplying the triangle height and base and dividing the result by two. A right triangle is a special case of a scalene triangle, in which one leg is the height when the second leg is the base, so the equation gets simplified to:. For example, if we know only the right triangle area and the length of the leg a , we can derive the equation for the other sides:. If you know one angle apart from the right angle, the calculation of the third one is a piece of cake:. However, if only two sides of a triangle are given, finding the angles of a right triangle requires applying some basic trigonometric functions:. To solve a triangle with one side, you also need one of the non-right angled angles.

Potato Calculator. Financial Fitness and Health Math Other. If all three sides of a right triangle have lengths that are integers, it is known as a Pythagorean triangle.

Enter any valid input 3 side lengths, 2 sides and an angle or 2 angle and a 1 side and our calculator will do the rest. This is the acute triangle in Quadrant I, for more information on this topic, check out the law of sines ambiguous case. This is the obtuse triangle in Quadrant II, for more information on this topic, check out the law of sines ambiguous case. Status: Calculator waiting for input. The most frequent reason for this is because you are rounding the sides and angles which can, at times, lead to results that seem inaccurate. In these cases, in actuality , the calculator is really producing correct results. However, it is then rounding them for you- which leads to seemingly inaccurate results and possible error warnings.

Omni's triangle side calculator allows you to calculate the length of the sides of a triangle. There are several methods to find the missing side of a triangle. Depending upon the type of given information, you can choose one of the following:. If we know, the measurements of the two sides and the opposite angle to one of them , we can use the Law of Sines to find the missing side. On the other hand, if we know two sides and the angle between them , we can use the Law of Cosines to find the remaining side. Hence if we know the measurement of the two angles, we can find the third angle using the equation:. Once we know the third angle, we can easily calculate the missing side using the Law of Sines mentioned above. This is the most simple scenario. As we know that the perimeter of a triangle is just the sum of its three sides , i.

Online triangle calculator

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! If you are wondering how to find the missing side of a right triangle, keep scrolling, and you'll find the formulas behind our calculator. There are a few methods of obtaining right triangle side lengths. Depending on what is given, you can use different relationships or laws to find the missing side:. If you know two other sides of the right triangle, it's the easiest option; all you need to do is apply the Pythagorean theorem:. If leg a is the missing side, then transform the equation to the form where a is on one side and take a square root:. As we remember from basic triangle area formula , we can calculate the area by multiplying the triangle height and base and dividing the result by two. A right triangle is a special case of a scalene triangle, in which one leg is the height when the second leg is the base, so the equation gets simplified to:. For example, if we know only the right triangle area and the length of the leg a , we can derive the equation for the other sides:.

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Does your ramp fit? If you know two other sides of the right triangle, it's the easiest option; all you need to do is apply the Pythagorean theorem:. We can find the lengths of the medians with the following formula:. The length of each median can be calculated as follows:. Note that the triangle provided in the calculator is not shown to scale; while it looks equilateral and has angle markings that typically would be read as equal , it is not necessarily equilateral and is simply a representation of a triangle. Like, for example, A B C. Directions for use To use this triangle calculator, enter any three values into the input fields. This is the acute triangle in Quadrant I, for more information on this topic, check out the law of sines ambiguous case. Tick marks on the edge of a triangle are a common notation that reflects the length of the side, where the same number of ticks means equal length. It states that the sum of the lengths of any two sides of the triangle must be greater than or equal to the length of the remaining third side. However, if only two sides of a triangle are given, finding the angles of a right triangle requires applying some basic trigonometric functions:.

Enter any valid input 3 side lengths, 2 sides and an angle or 2 angle and a 1 side and our calculator will do the rest. This is the acute triangle in Quadrant I, for more information on this topic, check out the law of sines ambiguous case. This is the obtuse triangle in Quadrant II, for more information on this topic, check out the law of sines ambiguous case.

Our Most Popular Animated Gifs. Auto Calculate. In a triangle, the inradius can be determined by constructing two angle bisectors to determine the incenter of the triangle. Given the area and one leg As we remember from basic triangle area formula , we can calculate the area by multiplying the triangle height and base and dividing the result by two. The condition on the sides is based on the triangle inequality. Side B. Triangle Calculator The triangle calculator finds all triangle measurements — side lengths, triangle angles, area, perimeter, semiperimeter, heights, medians, inradius, and circumradius. Like, for example, A B C. For example, a triangle in which all three sides have equal lengths is called an equilateral triangle while a triangle in which two sides have equal lengths is called isosceles. If a right triangle is isosceles i. The most frequent reason for this is because you are rounding the sides and angles which can, at times, lead to results that seem inaccurate.