5.3 similar triangles, aa, sas, sss.notebook · 2015. 12. 2. · similarity properties: aug 51:58...
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5.3 Similar triangles, AA, SAS, SSS.notebook
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December 02, 2015
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5.3 Similar triangles AA, SAS, SSS
I CAN...Identify and list corresponding angles and proportional sides of similar triangles
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AngleAngle (AA) Similarity Postulate
Similar symbol:
Similarity statement:
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Determine whether the triangles are similar. If so, write a similarity statement and explain your reasoning.
X
S
R
W
T
L K
J
P
M
Q
57O
48O
57O
75O
1. 2.
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SideSideSide (SSS) Similarity Postulate
SideAngleSide (SAS) Similarity Postulate
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In the figure, OW = 7, BW = 9, WT = 17.5, and WI = 22.5.
Determine which triangles in the figure are similar.
5.3 Similar triangles, AA, SAS, SSS.notebook
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December 02, 2015
Aug 51:58 PM
Similarity Properties:
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Determine if the triangles are similar. If so, solve for x and y.
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A lighthouse casts a 128foot shadow. A nearby lamppost that measures 5 feet 3 inches casts an 8foot shadow.
A. 5 feet 3 inches is 5.___________ feet.
B. Write a proportion that can be used to determine the height of the lighthouse.
C. What is the height of the lighthouse?
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INDIRECT MEASUREMENT Josh wanted to measure the height of the Sears Tower in Chicago. He used a 12foot light pole and measured its shadow at 1 P.M. The length of the shadow was 2 feet. Then he measured the length of the Sears Tower’s shadow and it was 242 feet at that time. What is the height of the Sears Tower?