Question
In a scaled drawing, 1 millimeter represents meters. How many square millimeters on the drawing represent 1 square meter?
A. 1/22,500
B. 150/22,500
C. 120
D. 22,500
A. 1/22,500
B. 150/22,500
C. 120
D. 22,500
Answers
Reiny
missing information, but from the appearance of the digits 225 in the answers, I will
conclude that 1 mm represents 15 metres.
15 m ----> 1 mm
15^2 m^2 ----> 1 mm^2
225 m^2 ----> 1 mm^2
1 m^2 = 1/225 mm^2
Don't see that, so my assumption was off, or else the question is off.
You decide what the given ratio was, then fix it accordingly
conclude that 1 mm represents 15 metres.
15 m ----> 1 mm
15^2 m^2 ----> 1 mm^2
225 m^2 ----> 1 mm^2
1 m^2 = 1/225 mm^2
Don't see that, so my assumption was off, or else the question is off.
You decide what the given ratio was, then fix it accordingly
Gaalee
sorry it was 150
Reiny
so did you make the necessary changes to my reply ?
henry2,
1mm = 150m
(1/150)mm = 1m.
(1/150)^2mm^2 = 1m^2
(1/22,500)mm^2 = 1m^2.
(1/150)mm = 1m.
(1/150)^2mm^2 = 1m^2
(1/22,500)mm^2 = 1m^2.