Geometry helps us in deciding what materials to use, what design to make and also plays a vital role in the construction process itself. Different houses and buildings are built in different geometric shapes to give a new look as well as to provide proper ventilation inside the house.
Hope that helped :)
(3, 5pi/3) = (3cos 5pi/3, 3sin 5pi/3) = (1.5, -2.6)
Hello,

=70 (sum of angles of a triangle=180°)

supplementary angles

translation BC

image of the angle DAB by the axis symmetry DB

opposed angles of a parallelogram
are supplementary.

opposed angles by the vertex

alterne-interne angles (sorry for the words English is difficult for me)
3 times 8 times 1 eqals 24