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