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Cylinder volume
There are two definitions of a cylinder in geometry: 1) A cylinder is a simple geometric body obtained by rotating a rectangle around one of…
Cube volume
A cube is a three-dimensional geometric shape with all edges equal, length equal to width and equal to height. The cube has six square faces…
Pyramid Volume
A pyramid is a polyhedron, the base of which is a polygon, and its faces are triangles. The pyramid has edges. We can say that…
Find the number of permutations
The mathematics section is combinatorics, which studies the selection and arrangement of elements from a certain basic set in accordance with specified rules. Formulas and…
Combinatorics — permutations, combinations, placements
Elements of combinatorics–permutations, placements, combinations – as terms known to us today, are first found in the works of Jacob Bernoulli (“permutation” and “placement”) and…
The orthocenter of the triangle
The orthocenter of a triangle is the intersection point of the triangle heights or their extensions. Depending on the type of triangle, the orthocenter can…
Cotangence Calculator
The cotangent is the ratio of the cosine to the sine. Find the value X=SIN(A)X=COS(A)X=TAN(A)X=CTN(A) A=ARC SIN(X)A=ARC COS(A)A=ARC TAN(X)A=ARC CTN(X) Initial data X= A= Degree…
Tangent Calculator
The tangent of an acute angle in a right triangle is equal to the ratio of the opposite cathet to the adjacent cathet. Find the…
Find the sine of the angle
The sine of the acute angle of a right triangle is the ratio of the opposite cathet to the hypotenuse. Find the value X=SIN(A)X=COS(A)X=TAN(A)X=CTN(A) A=ARC…
Cosine Calculator
Cosine for some angles it is possible to find exact values, while for others it is difficult to determine the exact figure and only an…