Ania Rodriguez 1ºC
TECHNICAL DRAWING AND POLYGONAL SHAPES
Tasks Unit 5
Ania Rodríguez 1ºC
1. Answer the following questions about Technical Drawing:
a.- What angles can you draw using a 45º triangular set square? And
with a 60º triangular set square?
45º, 60º, 105º, 15º, 90º, 165º, 150º.
b.- Divide a 77 mm segment into two equal parts, using your
c.- Draw a straight line r and any point A on it. Starting at point A,
draw a 72º angle off the line using a protractor.
d.- A straight line can create a sense of volume. On a sheet of paper,
draw a composition showing this effect.
e.- Look for a picture painted by Josef Albers which he uses only
black and red straight lines, and for the picture named "Homage To
The Square: Glow" painted in 1966 by the same author. In which one
does the painter create a sense of depth?
Tasks Unit 6
1. Answer the following questions about Polygonal shapes: triangles
a.- What is a triangle? Write a definition.
Is a flat shape formed by three straight lines that intersect each
b.- Describe the characteristics of a quadrilateral. What quadrilaterals
can you name?
They have 4 sides and 4 angles & the sum of the angles is 360º.
c.- Name and define the important lines of a triangle.
- The height of a triangle: this is the measured perpendiculary to
the base in a straight line to its opposite vertex.
- The middle point: is the middle point of any side of a triangle.
- The middle point of a segment: this is the line that joins any
vertex in a triangle to the middle point of its opposite side.
d.- What is a trapezoid? How is it different from quadrilaterals called
Is a quadrilateral, but no a parallelogram, because none of its sdes
are equal nor parallel. All its angles & diagonals are different.
e.- Draw the following triangles and quadrilaterals giving step-by-step
diagrams. Write simple instructions for each step.
1. A triangle with sides that measure 65, 55 and 45 mm.
2. A diamond with the longest diagonal measuring 60mm and its
smallest diagonal measuring 50mm.
3. A trapezoid with sides measuring 45, 40, 35 and 30 mm and a
diagonal of 50 mm
f.- Find a picture by Richard Anuszkiewicz that uses just triangles.
g.- Look for the picture "Grande Toile Grise Pour Kassel" painted by
Antoni Tapies in 1964. What polygonal shapes can you see?
h.- Look for a Basque Sculptor who uses mostly polygonal shapes in
i.- Look for Pablo Picasso's "Accordionist" painted in 1911 and
Georges Braque's "Violin and Palette" painted in 1909. What
movement do they belong to? What similarities can you see?