Projection

Here we projected a point and a triangle in their different views.

Blanca

Christian

Hyperbola and parabola

The hyperbola is the set of points in a plane whose distances to two fixed points in the plane have a constant difference, and the parabola a conic section formed by the intersction of a cone by a plane parallel to its side.

Christian

Álvaro

Blanca

Ovoid, oval and ellipse

Here we have the drawings of these figures.

Christian

Blanca

Polygons

With a compass and the help of the Tales Theorem, we did all these polygons, from a triangle to a dodecagon.

Blanca

Álvaro

Basic geometric drawings

With one line given, we did dis geometric figures just with ruler and compass.

Blanca

Thales Theorem

Here we used this theorem and another method to divide a line in equal parts.

Christian

Álvaro

Accordion

Alternating strips images on a folded sheet, we get this result.

Álvaro

Blanca