Scale Drawing and Proportions

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

The actual area of a square garden is 400m². If the garden is drawn using the scale of 1:500, calculate the area, in cm², of the drawing.

• 4

• 8

• 16

• 20

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.

• 0.25
• 0.5
• 2
• 1/2

Which copies are scale drawings when compared to the original triangle?

• 1, 2, and 3

• 1 and 2

• 2 and 3

• 1

• 2

Which of the following are scaled copies of the original portrait? Select ALL the apply.

• A

• B

• C

• D

• E