Scale Drawing Setup

Determine the scale in the form of 1:n

Determine the scale used in the form of 1:n

Find the perimeter of the large triangle.

• 24

• 36

• 12

• 54

A house plan is drawn with the scale of 1:400. The length and the width of living room on the plan are 5cm and 4cm respectively. If the living room is shape of a rectangle, what is the actual area, in m², of the living room?

• 20

• 320

• 200 000

• 3 200 000

The actual length of a side of a quadrilateral is 49mm. The length of the mentioned side on a scale drawing is 7cm using the scale of 1:n. Calculate the value of n.

Based on the diagram, check 2 correct length of JK based on the given scales.

• Scale = 1:2

  Length of JK = 7.5cm

• Scale = 1:1

  Length of JK = 15mm

• Scale = 1:
  Length of JK = 0.3m

The actual length of a river is 2km. If the river is drawn on a map scale 1:40 000, find the length, in cm, of the river on the map.

State the sclae of the scale drawing