The lesson was developed by the teacher of Gorlovka comprehensive school I - II No. 35 Dushkina I. A. Lesson No. 18 (No. 4 in topic No. 13 “Reading and detailing assembly...
Equation of a plane passing through a given point perpendicular to a given line
In this article we will talk about how to construct the equation of a plane passing through a given point in three-dimensional space perpendicular to a given...
Rectangular projection on one, two and three projection planes
Let it be necessary to construct a rectangular projection of the object specified in Figure 43. Let us choose a vertical projection plane (denoting it with the letter V). Such...
Lecture on mathematics on the topic "test of perpendicularity of two planes"
If one of two planes passes through a line perpendicular to the other plane, then the given planes are perpendicular () (Fig. 28) α is the plane in...
Pressure under a curved fluid surface
Curvature of a curve Let γ(t) be a regular curve in d-dimensional Euclidean space, parameterized by length. Then it is called the curvature of the curve γ in...
Equation of a second order conic surface
Contents of the article CONIC SECTIONS, plane curves that are obtained by intersecting a right circular cone with a plane that does not pass through its vertex...
Construction of surface developments of geometric bodies Lateral development
We know what a cone is, let's try to find its surface area. Why do you need to solve such a problem? For example, you need to understand how much dough will go into...
Truncated pyramid. Pyramid. Truncated pyramid K 2 pyramid pyramid surface
Let's remember: apothem is the height of the side face of the pyramid, drawn from the top to the edge of the base. Theorem 5. If all the side faces of the pyramid are inclined to the plane...
Projections of a point Finding the projection of a point onto a plane
Projection apparatus The projection apparatus (Fig. 1) includes three projection planes: π 1 – horizontal projection plane; π 2 – front...
General characteristics of group VIA p-elements
Slide 2 Sulfur, selenium and tellurium are elements of the main subgroup of group VI, members of the chalcogen family. Slide 3 Sulfur Sulfur is one of the substances...
Associated impulse force impulse of the body
His movements, i.e. size . Momentum is a vector quantity that coincides in direction with the velocity vector. SI unit of impulse: kg m/s...
Military despotism of the ancient world Preservation of the bodies of the dead
It is believed that about 4,000 architects, artists, stonemasons and other artisans carried out the preparatory work for about 10 years and only after that...