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Identifying lines(straight lines) and curves. Identifying flat faces of a 3D object. What will we learn today? Geometry Line, curve and surface
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Page 1: Kungfu math p2 slide10 (line,curve,surface)

• Identifying lines(straight lines) and curves.

• Identifying flat faces of a 3D object.

What will we learn today?

GeometryLine, curve and surface

Page 2: Kungfu math p2 slide10 (line,curve,surface)

Things that you need to know.

straight line

curve

Page 3: Kungfu math p2 slide10 (line,curve,surface)

Things that you need to know.

straight line

curve

Page 4: Kungfu math p2 slide10 (line,curve,surface)

Things that you need to know.

A cylinder has 1 curve surface and 2 flat surfaces.

The blue portion is the curve surface.

Page 5: Kungfu math p2 slide10 (line,curve,surface)

Things that you need to know.

A cylinder has 1 curve surface and 2 flat surfaces.

Page 6: Kungfu math p2 slide10 (line,curve,surface)

A cube has no curve surface and 6 flat surfaces.

Page 7: Kungfu math p2 slide10 (line,curve,surface)

Here’s an example.

Page 8: Kungfu math p2 slide10 (line,curve,surface)

Look at the figure below carefully.

How many curve surface(s) can you see?

Page 9: Kungfu math p2 slide10 (line,curve,surface)

Look at the figure below carefully.

How many curve surface(s) can you see?

Ans: 1

Page 10: Kungfu math p2 slide10 (line,curve,surface)

Moving to the next level.

Page 11: Kungfu math p2 slide10 (line,curve,surface)

Look at the flat surface below carefully.

Which figure does it belong to?

A B C D

Page 12: Kungfu math p2 slide10 (line,curve,surface)

Look at the flat surface below carefully.

Which figure does it belong to?

A B C D

Page 13: Kungfu math p2 slide10 (line,curve,surface)

Are you ready to try out the questions?