Arya Singh Haridini nishane Simran Negi Umang MotiyanI

IX- B

90o

Q. What is GEOMETRY?Geometry  is a branch of mathematics concerned with questions of shape, size, relative position of figures, and the properties of space.Geometry deals with space and shapes. It is a distinctly different area of mathematics than the other areas. In geometry we study two-dimensional and three-dimensional shapes as well as relationships between them.

Geometry allows us to use a spatial approach to solve problems.

Geometry enables us to analyse and represent relationships between parts of shapes. It also enables us to create and use representational systems to describe locations.

Geometry gives us tools to transform shapes in a mathematical manner.

• Geometry is considered an important part in field of study because of its applications in daily life.

• For example, a sports car moving in a circular path and here it applies the concepts of geometry.

• Stairs are made in your homes inclined at 60o, with each stair designed at 90 degrees.

• A Simple cloth hanger has 2 x 30o angles + 1 x 120o angle = 180o angle.

• A ceiling fan has its 3 blades at 120o angles to make 360o while in motion.

• Any object when thrown at 45o angle, covers maximum distance.

• In addition, geometrical shapes are also used by the artists. The most interesting example is that nature speaks of geometry and you can see shapes in all things of nature.

• We need not be lost anywhere in this great universe. We can go to any place and come back to the place of origin. The location concept is a geometrical concept. Even a sailor in a mid sea  and a pilot in the air  uses geometrical ideas to locate himself and where he is heading.

• Designing our house, School, town planning,roads, bridges, surveying are the products of geometry.

60o

Stairs : inclined at 60o,

with each stair at 90o.

30o

30o120o

A Simple cloth hanger has 2 x 30o angles + 1 x 120o angle = 180o angle.

Semicircles in Cycles

Angles in Earth

30o 30o

Arches are used to withstand maximum weight.

Structural designs to withstand forces of nature

Symmetry of a Leaf

Geometry of Lunar Eclipse

The shortest path between two points is a straight line.

The two sides of Roads are always parallel to each other

90o

60o

Geometry in Stairs

.Inclined Angle = 60o angle; Each

Stairs = 90o angle 

What is so special …  •The Ridley frames are built with the longest head tubes in the industry.•The stem is sitting directly above the head tube, translation; comfort, stability, control.  •In addition to longer head tubes, Ridley has revolutionized frame geometry by introducing the first 1.5inch bottom headset.  •This enables maintaining light low weight on all their frames

This presentation shows us the importance of geometry in our life.From a small thing like a cloth hanger to huge world of construction everything needs geometry. Without geometry this world would have been nothing .Thus, we would like to conclude by saying that Geometry is not only an important part of Mathematics, but also our life is directly or indirectly depended on geometry.

Thank you