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P Q
GEOMETRICAL DRAWINGGEOMETRICAL DRAWING
CHAPTER 1 : GEOMETRY - POLYGONS
LOCAL PUBLICATIONS (001427383-A)
1. Construct a regular pentagon PQRST with given length PQ.
4
5
6
P Q60° 45
°
RT
CHAPTER 1 : GEOMETRY - POLYGONS
LOCAL PUBLICATIONS (001427383-A)
2. Construct a regular pentagon PQRST with in the given circle.
1
2
3
4
5
M
PQ
R
S
T
2'
`
CHAPTER 1 : GEOMETRY - POLYGONS
LOCAL PUBLICATIONS (001427383-A)
3. Construct a regular hexagon PQRSTU with the given side PQ.
P Q
R
ST
U O
CHAPTER 1 : GEOMETRY - POLYGONS
LOCAL PUBLICATIONS (001427383-A)
4. Construct a regular hexagon PQRSTU with the given distance across flat is 75 mm.
P
Q
R
S
T
U
O30°
CHAPTER 1 : GEOMETRY - POLYGONS
LOCAL PUBLICATIONS (001427383-A)
5. Construct a regular hexagon PQRSTU with the given distance across corner is PS.
P S
Q R
TU
CHAPTER 1 : GEOMETRY - POLYGONS
LOCAL PUBLICATIONS (001427383-A)
6. Construct a regular octagon PQRSTUVW with the given side length PQ.
P Q
45°
R
S
TU
V
W
O
CHAPTER 1 : GEOMETRY - POLYGONS
LOCAL PUBLICATIONS (001427383-A)
7. Construct a regular octagon within the given circle.
45°45°
CHAPTER 1 : GEOMETRY - POLYGONS
LOCAL PUBLICATIONS (001427383-A)
8. Construct a regular octagon the given a square.
CHAPTER 1 : GEOMETRY - POLYGONS
LOCAL PUBLICATIONS (001427383-A)
9. Figure 1 shows a template ABCDE. The new line AB is as shown. Redraw the template by using geometrical techniques.
Regular pentagon
FIGURE 1
A B
C
D
E
60°
4
5
6
A B
C
D
E
45°60°
CHAPTER 1 : GEOMETRY - POLYGONS
LOCAL PUBLICATIONS (001427383-A)
FIGURE 2
Half hexagon
DA E
CB
F
60
30°
DA O E
CB
F
10. Draw Figure 2 by using geometrical method. ABCD is a half of the regular hexagon. The new position of point A and line DE are as shown.
CHAPTER 1 : GEOMETRY - POLYGONS
LOCAL PUBLICATIONS (001427383-A)
A
E
45°
C
D
F
B
O
Half regular octagonF
A
B
C
D
E
FIGURE 3
45°
4311. Figure 3 shows a template ABCDEF. The new line AE is as shown. Redraw the template by using geometrical
techniques.
CHAPTER 1 : GEOMETRY - POLYGONS
LOCAL PUBLICATIONS (001427383-A)
12. Figure 4 shows a template ABCDEF. ABCDE is a regular pentagon. Draw the template in the given circle.
FIGURE 4
Regular pentagon
A B
CE
D
F
30°
75
1
2
3
4
5
B
C
A
D
E
2'
x
F
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