This presentation belongs to civil engineering students

1. English for Civil Engineering
DESCRIBING SHAPES
Juvrianto CJ, S.Pd., M.Pd.

2. What is shapes?
Shapes is very important because without understanding shapes, we cannot
identify objects. In geometry, a shape can be defined as the form of an object or
its outline, outer boundary or outer surface.
Everything we see in the world around us has a shape. We can find different
basic shapes such as the two-dimensional square, rectangle, and oval or the
three-dimensional rectangular prism, cylinder, and sphere in the objects we see
around us. These geometric shapes appear in objects we see as credit cards,
bills and coins, finger rings, photo frames, dart boards, huts, windows,
magician’s wands, tall buildings, flower pots, toy trains, and balloons.

3. Lines
This is vertical line

4. Lines
This is horizontal line

5. Lines
This is diagonal line

6. Lines
This is parallel line

7. Lines
This is curved line

8. Look at this example
R = Letter “R” consists of 1 vertical line, 1 curved line and 1 diagonal line
I = Letter “I” consists of 1 vertical line
A = Letter “A” consists of 2 diagonal lines and 1 horizontal line
N = Letter “N” consists of 2 vertical lines and 1 horizontal line
What about your name?
R I A N

9. 2D Shapes
- It has 1 side
- It has no corners
- It has no parallel sides
- It only has one curved edge
It’s a CIRCLE

10. 2D Shapes
- It has 4 straight edges.
- All its sides are the same length. They are parallel.
- It has 4 corners.
It’s a SQUARE

11. 2D Shapes
- It has 3 straight edges
- It has 3 corners.
- Sometimes two of its sides are at right angles, and sometimes they are not.
It’s a TRIANGLE

12. 2D Shapes
- It has 4 straight edges.
- 2 of its edges are long and 2 are shorter.
- It also has 4 corners.
It’s an OBLONG

13. 2D Shapes
- It has 2D 5 straight edges
- It has 5 corners.
It’s a PENTAGON

14. 2D Shapes
- It has 2D 6 straight edges
- It has 6 corners.
It’s a HEXAGON

15. 3D Shapes
- It has no flat faces.
- It has no straight edges.
- It has just one curved face.
It’s a SPHERE

16. 3D Shapes
- It has one curved face.
- It has one flat face.
- Its flat face is a circle.
It’s a CONE

17. 3D Shapes
- It has 6 flat square faces
- It has 12 straight edges
- It has 8 corners.
It’s a CUBE

18. 3D Shapes
- It has 6 flat faces
- Its faces are all rectangles (square or oblong)
- It has 12 straight edges and 8 corners
It’s a CUBOID

19. 3D Shapes
- It has one curved face
- It has 2 flat circular faces.
It’s a CYLINDER

20. It’s time to ..
EXERCISE
S

21. Exercises
What is it?
It’s a golf ball. Its shape is sphere.

22. Exercises
What is it?
It’s an orange.
Its shape is sphere.

23. Exercises
What is it?
It’s a tree.
Its shape is cone.

24. Exercises
What is it?
It’s an ice.
Its shape is cube.

25. Exercises
What is it?
It’s a book.
Its shape is cuboid.

26. Exercises
What is it?
It’s a glass.
Its shape is cylinder.

27. ANY QUESTIONS SO FAR
?