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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
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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, there has to be a point!
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