Exercise 4.2
(1) Tick these figures which are simple curves
2. State which curves are open and which are closed
Open Curves
Closed Curves
3. Name the points that lie in the interior, on the boundary and in the exterior of the figure.
Figure
A
B
C
D
E
F
G
I
J
K
Interior
Exterior
On the Boundary
4. Draw three simple closed figures:
(i) by straight lines only
(ii) by straight lines and curved lines both