Scales Flashcards
1
Q
If the scale on a plan drawing is 1cm = 25cm,
How long does a line measuring 5cm represent?
A
1cm = 25cm
so 5cm = 5 x 25cm
= 125cm (or 1.25m)
2
Q
If the scale on a plan drawing is 4cm = 1m,
How long does a line measuring 12cm represent?
A
4cm = 1m
so 12cm = 3 x 1m = 3m
3
Q
If the scale on a plan drawing is 1cm = 100cm,
How long does a line measuring 6.4cm represent?
A
1cm = 100cm
so 6.4cm = 6.4 x 100cm
= 640cm (or 6.4m)