IT News

Correct triangular prism

Правильна трикутна призма – призма, which is based on two right triangles, and all side faces are strictly perpendicular to these bases.

Wedge – це багатогранник, the two faces of which are equal triangles, lying in parallel planes, and other facets (side faces) – паралелограма, which have common sides with these triangles.

Correct triangular prism – це трикутна призма у якої основи правильні трикутники (all sides of which are equal, the angles between the sides of the base are 60 C), and the side faces are rectangles.

An interesting fact! Історично поняття “призма” виникло з латині і означало – щось відпиляне. The animation demonstrates how two parallel planes cutting off the excess form the two bases of the prism. From one blank you can get the right prism, and an inclined prism.

The bases of the prism are equal right triangles.

The side faces of the prism are rectangles.

The side edges of the prism are parallel and equal.
The dimensions of the prism can be expressed in terms of side length a and height h .
The area of ​​the total surface of the prism is equal to the sum of the area of ​​its side surface and twice the area of ​​the base.

The formula for the surface area of ​​a triangular prism:

The volume of a prism is equal to the product of its height and the area of ​​the base.

The formula for the volume of a right triangular prism:

The right triangular prism can be inscribed in the cylinder

The formula for the radius of a cylinder inscribed in a triangular prism:

The bipyramid is a double polyhedron of a straight prism.
Download a scan of a right triangular prism to print on an A4 sheet:

Geometric dimensions of the finished prism (mm):
Length = 85
Width = 74
Height = 55

DOWNLOAD

Geometric dimensions of the finished prism (mm):
Length = 70
Width = 60
Height = 80

DOWNLOAD

Geometric dimensions of the finished prism (mm):
Length = 31
Width = 27
Height = 94

DOWNLOAD

For materials: https://mnogogranniki.ru/

Exit mobile version