# find the unknown quantity calculator

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 other sides: If you know one angle apart from the right angle, 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: Let's show how to find the sides of a right triangle with this tool: Now, let's check how does finding angles of a right triangle work: If a right triangle is isosceles (i.e., its two non hypotenuse sides are the same length) it has one line of symmetry. Enter the Equation you want to solve into the editor. Need some help? What is cross multiplication? When measuring data, the result often varies from the true value.

That means. Mathway requires javascript and a modern browser. Let us consider that these two ratios are equal which means that they are in proportion. This would give you the following equation.

As these two ratios are equal, they can be used in the form of proportion.

The equation becomes √(a^2 + b^2) = c. Apply the values and find c:. Through proportion concepts, the value of X has to be determined.

Find the unknown length c of right triangle. In a right triangle $\Delta ABC$, the length of the hypotenuse $c$ is equal to the square root of the sum of the squares of the lengths of the legs $a$ and $b$. The proportion concept is used to determine the value of the unknown variable X. 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 when a is on one side, and take a square root: Apply the law of sines or trigonometry to find the right triangle side lengths: Find the missing leg using trigonometric functions: As we remember from basic triangle area formula, we can calculate the area by multiplying triangle height and base and dividing the result by two. A=$875. Step 2: Click the blue arrow to submit and see the result! The equation calculator allows you to take a simple or complex equation and solve by best method possible. If you have two unknown variables, the cross multiplication concept can be used to check the proportion between two unknown variables. MyCT Main Forum: Ideal gas law. The altitude$\overline{AA'}$divides the sides$\overline{BC}$into Objective : How do you solve a and b in Pythagorean theorem?To find a: using Pythagorean theorem. Fill in any three of the inputs, and the result of the fourth quantity will show up in the relevant output box. If the square of the length of the longest side of a triangle is equal to the sum of squares of the lengths of the other two sides, then the triangle is a right triangle. To solve a triangle with one side, you also need one of the non-right angled angles. Use this volume calculator to easily calculate the volume of common bodies like a cube, rectangular box, cylinder, sphere, cone, and triangular prism. What are the rules of Pythagoras?The square of the length of the longest side of a triangle should be equal to the sum of squares of the lengths of the other two sides. The length of the longest side of the sail is$220$centimeters, and the length of the other side of the sail is$5$meters. P=$500. True values are often unknown, and under these situations, standard deviation is one way to represent the error. The absolute error is then divided by the true value, resulting in the relative error, which is multiplied by 100 to obtain the percentage error. You just need to type in the expressions on the left and right side of the "=" sign. Percent and the partial amount are given and are known quantities Cross multiplying and solving for x, gives the value of the total amount. Thus, this scenario abides by the definition of proportion which elaborates that two ratios are equal. Choose two given values, type them into the calculator and the remaining unknowns will be determined in a blink of an eye! The formula for finding distance between two points is based on the Pythagorean Theorem. find the unknown quantity for a account that earns simple annual interest.