Question

Scale drawing of the electronics board

Scale factor: 5:1
36 cm
50 cm
Answer the questions to show how Adam could find the area of the scale drawing,
and then use this strategy to find the area of the electronics board.
1. What is the area of the board shown on the scale drawing? Explain how you found
the area.

Answer 1

do you know the answer?

Explanation:

Answer 2

Area of the electronic board is 9000 cm2

Explanation:

Write ratios to represent the unknown actual length and width of the display to the scale length and width of the display.

The Electronic board always seems like a rectangular shape

Length= scale÷Actual = 5/36 = 5×36 = 180cm

`Length= scale÷Actual = 5/36 = 5×36 = 180cm`

Width=scale÷Actual = 1/50 = 1×50 = 50cm

`Width=scale÷Actual = 1/50 = 1×50 = 50cm`

Area of Rectangle = legnth × width

= 180cm × 50cm = 9000 cm2

`= 180cm × 50cm = 9000 cm2`

Area of the electronic board is 9000 cm2