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#1 2010-06-24 17:02:35

lakeheadca
Member
Registered: 2010-01-31
Posts: 37

Problem#2 Grade 11 Geometry

in the diagram of triangle ABC and EDC below, AE and BD intersect at C, and angle
CAB approx= CED
which method can be used to show that triangle ABC must be similar to Triangle EDC.
1. SAS
2.SSS
3.AA
4.HL
please explain? thanks

View Image: 2.JPG

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#2 2010-06-24 17:15:42

ZHero
Real Member
Registered: 2008-06-08
Posts: 1,889

Re: Problem#2 Grade 11 Geometry

∠ACB=∠ECD
∠CAB=∠CED

Hence, the third angles must also be equal...
∠ABC=∠EDC

∴ AAA or (AA)


If two or more thoughts intersect with each other, then there has to be a point.

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