1. ENG 205 CE-ME-MECE-MSE DIMENSIONS OF CIRCLES

2. VOCABULARY

3. CIRCLE (noun): a completely round flat shape The plane made circles around the airport

4. OUTER CIRCLE (adjective+noun): The bigger circle that forms the outside of something The outer circle is the outside of the tyre.

5. INNER CIRCLE (adjective+noun): The smaller circle that forms the inside of something The teacher made two circles, and now the inner circle is speaking.

6. DIAMETER (noun): a straight line going from one side of a circle to the other side The diameter of this old tree is 50 cm.

7. CENTRE (noun): the middle point or part of something There is a huge table in the centre of the room.

8. CENTRAL (adjective): In the centre of an area or object Ankara is a city that is in the central parts of Turkey.

9. CONCENTRIC CIRCLES (adjective+noun): Circles that have the same centre In this photo, there are colourful concentric circles.

10. CIRCULAR (adjective): Shaped like a circle or ring The Colosseum of Italy has a circular shape.

11. RADIUS (noun): distance between the centre of a circle and its outer edge The radius of a circle is half its diameter. Radii (plural)

12. CIRCUMFERENCE (noun): A line that goes around a circle The circumference of Earth is almost 25000 miles.

13. CONSTANT RADIUS (adjective+noun): The radius that does not change. This tyre has a constant radius.

14. ROUND (adjective): Shaped like a circle or a ball Football is played with a round ball.

15. DEFORM (verb): To change the normal shape of something This tree was deformed by a strong wind.

16. DEFORMATION (noun): A change in the normal shape of something The illness caused a deformation in her hands.

17. ARC (noun): A curved line between two points along the circumference of a circle The arc of the rainbow looks beautiful.

18. CURVED (adjective): Having a round shape The sofa in our livingroom has a curved shape.

19. CURVE (noun): A line that bends and has no angles There is a curve on the graph on this page.

20. DEFORMED (adjective): Having a shape that is not normal You should change your tyres regulary. It is dangerous to use deformed tyres.

21. CHORD (noun): A straight line that connects two points on a curve A chord is not a curved line.

22. ROUNDED (adjective): Having a round shape We bought a new table with rounded edges. The old one had sharp edges.

23. INSIDE DIAMETER/BORE (ID) (adjective + noun): The inside width of a pipe The pipe has an inside diameter of 7 cm.

24. OUTSIDE DIAMETER (OD) (adjective+noun): The outside width of a pipe The pipe has an outside diamater of 9 cm.

25. CROWN (noun): The top of the outside of the pipe, the highest part of something There is a Turkish flag at the crown of this hill.

26. INVERT (noun): The bottom of the inside of the pipe The invert level of the pipe means the lowest level inside the pipe.

27. Match the words with the pictures

28. Curved, Rounded, Arc, Round, Diameter, Crown, Deformed

29. Curved Rounded ArcRound Diameter CrownDeformed

30. EXERCISES & OVER TO YOU