An online right triangle calculator is a program that calculates the unknown side lengths or angle measurements. It uses the known side length and angle measurements for its calculations.

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The formula for the area of any triangle equals 1/2 the base times the height. For a right triangle, this is easy to remember ,since a right triangle is half of a rectangle on one side of its diagonal, and the area of a ...

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The hypotenuse of a right triangle is calculated by finding the square root of the sum of the squares of the triangle's legs. It can be expressed using the formula c = √(a2 + b2), where a and b represent the legs of the ...

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To determine the value of the cosine of an angle in a right triangle, divide the length of the side adjacent to the angle by the length of the hypotenuse. The hypotenuse of a right triangle is the side opposite to the ri...

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The law of sines states that, for any given triangle, the ratio of the length of a side divided by the sine of the opposite angle is equal to the same ratio of the other two sides and angles. The law of sines is part of ...

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The basic trigonometric functions sine, cosine, and tangent give the ratio between two sides of a triangle with a given angle. The inverse trig functions find the angle if the ratio is known. Finding the inverse cosine o...

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Evaluating sin(arc-tan x) is a simple process that involves two steps: using a right-angled triangle to label the two sides and the angle in question, which is x, and using the Pythagoras theorem to calculate the remaini...

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