Triangle calculator

Triangle Calculator November

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:.

Triangle calculator

Please provide 3 values including at least one side to the following 6 fields, and click the "Calculate" button. A triangle is a polygon that has three vertices. A vertex is a point where two or more curves, lines, or edges meet; in the case of a triangle, the three vertices are joined by three line segments called edges. A triangle is usually referred to by its vertices. Furthermore, triangles tend to be described based on the length of their sides, as well as their internal angles. 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. When none of the sides of a triangle have equal lengths, it is referred to as scalene, as depicted below. 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. Similar notation exists for the internal angles of a triangle, denoted by differing numbers of concentric arcs located at the triangle's vertices. As can be seen from the triangles above, the length and internal angles of a triangle are directly related, so it makes sense that an equilateral triangle has three equal internal angles, and three equal length sides. 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. When actual values are entered, the calculator output will reflect what the shape of the input triangle should look like. Triangles classified based on their internal angles fall into two categories: right or oblique. The longest edge of a right triangle, which is the edge opposite the right angle, is called the hypotenuse.

Enter the side lengths. When none of the sides of a triangle have equal lengths, it is referred to as scalene, as depicted below.

Show values to. Additional Information The usual way of identifying a triangle is by first putting a capital letter on each vertex or corner. Like, for example, A B C. Now, a reference to A can mean either that vertex or, the size of the angle at that vertex. Here it means the size.

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. To see if that is your problem, set the rounding to maximum accuracy. Triangle App Triangle Animated Gifs.

Triangle calculator

The triangle length calculator tells you the length of the third side if you enter two sides and an angle. A triangle has three sides and three angles. To this end, you need to employ a sine law or the cosine law to relate them to each other. Sine or cosine forms the crux of trigonometry functions that have numerous applications. One is about finding the third side or any angle for a triangle: the calculator and the accompanying text do the same. Read on to understand more about triangle length and cosine law. The sides of the triangle are related to each other with the cosine law :.

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Additional Information The usual way of identifying a triangle is by first putting a capital letter on each vertex or corner. Note that the variables used are in reference to the triangle shown in the calculator above. Assume that we have two sides, and we want to find all angles. How to find the sides of a right triangle There are a few methods of obtaining right triangle side lengths. Any side of the triangle can be used as long as the perpendicular distance between the side and the incenter is determined, since the incenter, by definition, is equidistant from each side of the triangle. Likely the most commonly known equation for calculating the area of a triangle involves its base, b , and height, h. 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. Video Blackjack. A triangle is a polygon that has three vertices. Sometimes two different solutions are possible. Table of contents: How to find the sides of a right triangle How to find the angle of a right triangle How do you solve a right angle triangle with only one side?

Please provide 2 values below to calculate the other values of a right triangle. Right triangles, and the relationships between their sides and angles, are the basis of trigonometry. The sides of a right triangle are commonly referred to with the variables a, b, and c, where c is the hypotenuse and a and b are the lengths of the shorter sides.

How to find the angle? Similar notation exists for the internal angles of a triangle, denoted by differing numbers of concentric arcs located at the triangle's vertices. 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: 1. Refresh the calculator. Likely the most commonly known equation for calculating the area of a triangle involves its base, b , and height, h. Furthermore, triangles tend to be described based on the length of their sides, as well as their internal angles. The median of a triangle is defined as the length of a line segment that extends from a vertex of the triangle to the midpoint of the opposing side. Refer to the figure provided below for clarification. It is the edge opposite to the right angle and is c in this case. If not, it is impossible:. This app may share these data types with third parties App activity, App info and performance, and Device or other IDs. Very useful for solving triangles or double checking my own guess. Paid ad-free version also available.