Mathematics Form 3- Chapter 4 MFS

The length ratio on drawing to the actual is

• 1 cm : 3 cm

• 1 cm : 4 cm

• 1 cm: 1 m

• 1 cm : 4m

On the grid below, detemine the following shapes according to the size are half from object size.

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On the grid below, detemine the following shapes according to the size are double size from object size.

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Idenfity scales of scales drawing for BC based of diagram 3.

• 1 : 2/3

• 1 : 2

• 1 : 1

• 1: 5

Identify the scales of scales drawing for AD based of diagram 2

• 1 : 3

• 1 : 2/3

• 1 : 3/4

• 1 : 3/5

Which of the following is the scale drawing of object ABCD with scale 1 : 2?

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By using the scales 1:75 000, Dewi draw the map of a river. If actual length of the river is 14.25km, find the length , in cm, of the river on the map.

• 0.19

• 1.9

• 19

• 190

Given the actual length of the wall clock is 27 cm.Find the scale to draw of the wall clock

• 1 : 6

• 1: 5

• 1: 4

• 1 :3

Determined the scales used

• 1 : 1

• 1 : 0.5

• 1: 0.67

• 1 : 0.33

Calculate the area, in  $cm^2$  , of the triangle in its scales drawing drawn according to a scale of 

1 :  $\frac{1}{3}$  

•  $100\ cm^2$  
  

•  $104\ cm^2$  

•  $108\ cm^2$  

•  $112\ cm^2$