Common perpendicular to two intersecting lines in orthographic projections system

Perpendicular line to another given line passing through a given point in orthographic projections

Plane perpendicular to another that contains a given line in orthographic projections system

Line perpendicular to a given plane passing through a point in orthographic projections system

Perpendicularity in orthographic projections system

Intersection of oblique planes in orthographic projections (traces that intersect from behind)

Intersection of oblique planes in orthographic projections system

Roof design 🏠 inclined with the same slope, patios and horizontal eaves

Section of a square pyramid by plane defined by 3 points in orthographic projections system

Section of an oblique pyramid by a projecting plane in orthographic projections system

Pyramid section by oblique plane in orthographic projections system

Section of a right prism 🍞 through an oblique plane in orthographic projections system

Intersection of plane shapes in orthographic projections - Oblique & Horizontal Projecting

How to draw a regular heptagon inscribed in a given circle 📏✋📐

How to draw a regular pentagon knowing the length of one side 📏✋📐

Axial symmetry

How to draw a regular pentagon inscribed in a given circle 📏✋📐

How to draw a roof plan

Basic Tangency Course in Engineering Drawing

How to draw the tangent circle to a given circle passing through a tangent point T and a point P

How to Draw the External & Internal Tangent Circles with a given radius to 2 Given Circles

Tangents Lesson – Some Fundamentals of Tangency

Tangent Line to a Circle Given the Point of Tangency Using a Ruler and Compass

How to Draw the Tangent Circle to a given Line knowing its Tangent Point passing through a Point

How to Draw the Tangent circles between two Given Circles Knowing its Radius (2 solutions)

How to draw two tangent circles with a given radius to a given circle passing thought a given point

How to draw a Circle knowing its Radius Tangent to a given Line and a given Circle

How to draw the Tangent Circle to a given Line and another Circle with given Tangent Point T

How to Draw the Tangent Circle to a given Line with a Given Radius and Tangent Point

How to Draw the Involute of a given Circle

Tangent Lines to a Given Circle Parallel to a Given Direction

Inversion of a Circle Intersecting the Reference Circle and Passing through its Center Point

Inversion of a Circle Inside the Reference Circle and Passing through its Center Point

Inversion of a Circle Intersecting the Reference Circle and Not Passing through its Center

Inversion of a Circle Inside the reference circle and not passing through its Center

How to draw the Inverse Circle of any given Circle Outside the Reference Circle - inversion

How to Draw the Mid-Circle of 2 given Circles internally tangent to each other (Inversive Geometry)

How to Draw the Mid-Circle of 2 given Circles one Lying Inside another (Inversive Geometry)

How to Draw the Mid-Circle of 2 given Circles Lying Independent of each other (Inversive Geometry)

How to Draw the Mid-Circle of 2 given Circles externally tangent to each other (Inversive Geometry)

How to Draw the Mid-Circle of two given Circles Intersecting at two points (Inversive Geometry)

How to Draw a Golden Rectangle knowing the length of its Shorter Side

How to draw the Mid-Circle of two given Inverse Circles (Inversive Geometry)

How to find the Golden Section of a given Line Segment

Dimensioning Repetitive Features in Engineering Drawing

How to Dimension Incomplete Sections and Half Sections - Dimensioning in Mechanical Drawing

Dimensioning Spherical Shapes in Engineering Drawing

How to Dimension Radiuses of Arcs

Dimensioning Circular Shapes in Engineering Drawing

2 Dimensioning Methods - Chain and Parallel

How many Dimensions do I need? - Dimensioning a Mechanical Drawing

Size and Position of Dimension Text in Engineering Drawing Dimensioning

Dimensioning Small Parts in Mechanical Drawing

Different Styles of Arrowheads and Termination Symbols Dimensioning in Engineering Drawing

How to draw Dimension and Extension Lines in Mechanical Drawing

Dimensions in Engineering Drawing

Inversion of a Circle (5 cases) Geometric Inversion

How to Locate the Inverse Point of any given point with respect to a Circle

How to Draw the Angle Bisector of 2 Converging Lines (When the Vertex is out of sight)

Third Angle Orthographic Projection