Question

Jane is drawing a plan of her house. Her scale is 4 cm to 5 m. The hall is

10.5 m long. How long is the hall on her plan?
cm

Answer 1

Explanation:

Scale factor = 4 : 500

= 1 : 125

Let the length of hall in her plan = x cm

1 : 125 = x : 1050

`\sf (1)/(125)=(x)/(1050)`

Cross multiply,

1*1050 = x*125

`\sf x =(1050)/(125)`

x = 8.4 cm

The length of the hall in her plan = 8.4 cm