Scale Drawings
Presentation
•
Mathematics
•
5th - 7th Grade
•
Hard
Stephanie Weathington
Used 4+ times
FREE Resource
9 Slides • 0 Questions
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Scale Drawings
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We find this by comparing one measurement to another.
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6 cm is in the same location as 3 cm
12 cm is in the same location as 6 cm
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We can calculate the scale using division:
6/3 = 2 and 12/6 = 2
The relationship will always be the same!!
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The scale is:
the size of the drawing : size of the object
Scale 1 : 2
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What is the value of x
We need to compare the sides
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We calculate 28/7 = 4
So we know that the scale is 1:4
That means that the original is 4 times bigger than the drawing
Therefore 5 x 4 = 20
x = 20
Scale Drawings
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