One of the most fundamental and useful tools for working with right triangles is the Pythagorean theorem. They have some unique properties that make them important in mathematics and real-world applications. Right triangles are triangles with one angle measuring 90 degrees, also known as a right angle. Length of Diagonals: d 1 = 2asin(θ/2) and d 2 = 2acos(θ/2) (where a is the length of one side and θ is the measure of one angle).Perimeter: P = 4s (where s is the length of one side).Area: A = (d 1 x d 2)/2 (where d 1 and d 2 are the lengths of the diagonals).This means that each diagonal divides the rhombus into two congruent right triangles, which can be used to find the length of the diagonals. The diagonals of a rhombus are perpendicular bisectors of each other, meaning they intersect at a 90-degree angle and bisect each other. The perimeter is calculated by adding the length of all four sides. The area of a rhombus is calculated by multiplying the length of one diagonal by the length of the other diagonal, and dividing the result by two.
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