1. 6.3 Similar Figure Scale Drawings January 05, 2012
Solve. Round to the
nearest tenth if necessary.
1. 2 = f
3 21
2. 9 = 15
4 p
Bellwork
Objective: use similar figures and scale drawings
HW pg. 301 #4­24 evens 1

2. 6.3 Similar Figure Scale Drawings January 05, 2012
Similar Figures ­ have the same shape, but not necessarily the same size.
Similar figures have corresponding angles and corresponding sides.
The symbol ~ means is similar to. In this example. ΔABC ~ ΔXYZ
53
o 9
53
o
6
10 15
37
o
8
12
o
37
HW pg. 301 #4­24 evens 2

3. 6.3 Similar Figure Scale Drawings January 05, 2012
HW pg. 301 #4­24 evens 3

4. 6.3 Similar Figure Scale Drawings January 05, 2012
Corresponding angles have equal measurements
Corresponding sides are in proportion.
Parallelogram ABCD ~ parallelogram EFGH. Find the value of x.
E 24 F
A 16 B
x 18
D C H G
HW pg. 301 #4­24 evens 4

5. 6.3 Similar Figure Scale Drawings January 05, 2012
HW pg. 301 #4­24 evens 5

6. 6.3 Similar Figure Scale Drawings January 05, 2012
A tree casts a shadow 10 ft long. A 5 ft women casts a shadow 4 ft long.
The triangle shown for the woman and her shadow is similar to the triangle
shown for the tree and its shadow. How tall is the tree?
HW pg. 301 #4­24 evens 6

7. 6.3 Similar Figure Scale Drawings January 05, 2012
A scale drawing ­ is an enlarged or reduced drawing that is similar to an actual object or place.
The ratio of a distance in the drawing to the corresponding actual distance
is the scale of the drawing.
The scale on a map is 1 in : 40 mi. The distance from Atlanta to Macon is about 75 mi.
What is the approximate map distance between these two cities?
HW pg. 301 #4­24 evens 7

8. 6.3 Similar Figure Scale Drawings January 05, 2012
HW pg 301 # 4 ­ 24 evens
HW pg. 301 #4­24 evens 8