Scale in architecture and engineering has two meanings. It refers to both the dimension that represents the structure in a plan, and the ruler used for drawing plans. Scaling a drawing involves measuring the object, choosing a ratio, converting measurements using the ratio, starting the perimeter with straight segments, referring to the original frequently, using string to check irregular shapes, and adding interior details after finishing the perimeter.

2. Scale– architecture and engineering the
term scale has two meanings. A scale is a
dimension that represents the structure
shown in a plan. A scale is also a ruler
used in drawing and measuring
architectural and engineering plans.

3.  The continuous line
forming the boundary of
a closed geometric
figure.

4. The quantitative relation between
two amounts showing the number
of times one value contains or is
contained within the other.

5.  Measurement the object you’ll be
scaling.
For images that are irregularly shaped,
measuring with a rule or tape measure can be
difficult. In these cases, outline the perimeter
with a place of string, then measure the
length of the string to find the perimeter.

6.  Choose a ratio for your scaled
drawing.
Common ratio includes 1:10, 1:100,2:1, and
4:1. when the first number is smaller than
the second, it represents scaling down
(reducing). When the first is larger than the
second, it represents scaling up ( enlarging).

7. Convert the actual
measurements with the ratio.
When scaling down, divide the
original measurements by the second
number in your ratio. When scaling
up, multiply the original
measurements the first number.

8. Start drawing the perimeter with a
straight segment when possible.
A straight segment will be easier to check
against your converted length. This will
also give you a better feel for how much
the scaled image has changed from the
original.

9. .
Refers to the original drawing
frequently.
Branch out from your starting segments by
adding to the sides in the same fashion as the
original. Continue adding to the perimeter
until the entire scaled image is drawn.

10. Use a piece of starting to check the
scaled length of irregular images.
Cut a piece of string slightly longer than
your longest scaled segment. When drawing
irregular or arced segments, overlay the
string on the segments then measure the
string to see if it matches up with the scaled
length.

11. Add details after finishing the
perimeter.
The lines inside the perimeter of your drawing
will be similarly scaled. However, once the
perimeter is finished, you should have a much
easier time drawing the scaled inside lines
freehand.

12. Test 1 Multiple choice
1. IT IS A DIMENSION THAT REPRESENTS THE STRUCTURE SHOWN IN
PLAN
A. RATIO B. SCALE C. PERIMETER D. RULER
2. IT IS A CONTINUOUS LINE FORMING THE BOUNDARY OF A CLOSED
GEOMETRICAL FIGURE.
A. RATIO B. SCALE C. PERIMETER D. RULER
3. IT IS A QUANTITATIVE RELATION BETWEEN TWO AMOUNTS SHOWING
THE NUMBER OF TIRESOME VALUE CONTAINED WITHIN THE OHE.
A. RATIO B. SCALE C. PERIMETER D. RULER

13. TEST 2. Below are the 7 step in using a scale, arrange the step
according to their proper order.
a.) Add details after finishing the perimeter
b.) Refer to the original drawing frequently
c.) Use a piece of string to check the scaled length of irregular
images.
d.) Start drawing the perimeter with a straight segment when
possible.
e.) Convert the actual measurements with the ratio.
f.) Choose a ratio for your scaled drawing
g.) Measure the object you’ll be scaling.

14. 1. B.
2. C.
3. A.
4. 7
5. 5.
6. 6.
7. 4.
8. 3
9. 2
10. 1

15. THANK YOU…..