Page 120 - Mathematics Coursebook

12 Constructions
xx xxx

!e word construct means ‘to draw accurately’. Key words

In real life it is important for architects to make accurate drawings
of the buildings they are planning. Make sure you learn and
understand these key words:
ruler
straight lines
perpendicular lines
parallel lines
set square
included angle
SAS
included side
ASA
protractor
internal angle

!e Louvre museum in Paris, shown on the
right, is one of the largest and most visited
museums in the world.

It was originally built as a fortress and
later converted into a royal palace before
becoming a museum.
In 1989 the American architect I. M. Pei designed and
built a glass pyramid at the entrance to the Louvre.

!e pyramid is a complex steel structure covered with
glass pieces. Of these, 603 are rhombus-shaped and 70
are triangular.
You can see why it is important for architects to make
accurate drawings of their designs – think what would
happen to the glass pyramid if just one of the lengths
was wrong!
In this unit you will learn about drawing lines and
shapes accurately.

12 Constructions 119