note math form 3 - 9 scale drawing
TRANSCRIPT
Thursday, April 13, 2023
SCALE DRAWING
AIRIL AHMADSMK PERIMBUN
Thursday, April 13, 2023
EXERCISE
Drawing
Thursday, April 13, 2023
SCALE DRAWING
Scale = Length of a side of the drawing
Length of corresponding side of the object
Scale =D
O
DC= 4UNITSD’C’= 2UNITSD
C
Object
A
E
BA’
B’ C’
D’E’Drawing
DScale
O
2
4Scale
1
2Scale
DC= 4 units
D’C’= 2 units
Object
DScale
O
2
4Scale
2 : 4Scale2 4
:2 2
Scale
1: 2Scale
A
D C
B
DC= 3UNITSD’C’= 6UNITS
Scale = 6:3
Scale = 2:1
Object
A’
D’ C’
B’Drawing
Scale = 2:1
2 2
Scale = 1: 1/2
DC= 3 units
D’C’= 6 units
Object
DScale
O
6
3Scale
6 : 3Scale6 3
:6 6
Scale
31:
6Scale
1
2
11:
2Scale
Thursday, April 13, 2023
EXERCISE
Scale
EXERCISE 1:Find the scale
12 cm
6 cm
3 cm
6 cmObject
Drawing
EXERCISE 2:Find the scale
15 cm
5 cmObject
Drawing
EXERCISE 3:Find the scale
16 cm
4 cmDrawing
Object
EXERCISE 4:Find the scale
24 cm
3 cmObject
Drawing
EXERCISE 5:Find the scale6
cm
2 cm
Drawing
Object
Object
EXERCISE 6:Find the scale5 cm
20 cmDrawing
Object
EXERCISE 7:Find the scale
6 cm
18 cm
Drawing
Thursday, April 13, 2023
AIRIL BIN AHMAD
MAPS AND PLANS
Thursday, April 13, 2023
AIRIL BIN AHMAD
MAPS AND PLANS1:10 000
Means
1cm on the map and 10 000cm on the ground
The ratio 1 is called the representative fraction (RF)
10 000