Eric Nicholas K's answer to LZmath's Secondary 3 E Maths Singapore question.
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An idea
Date Posted:
3 years ago
This is not ASA. ASA refers to 2 angles and the included side.
The one you've proved is 2 angles and a non-included side , AAS
The one you've proved is 2 angles and a non-included side , AAS
For AAS it’s probably flexible (unlike SAS) as the proof of two angles being identical is sufficient to prove the identity of the third angle.
Then it has to be stated that the third angle is identical as well, before putting ASA.
ASA strictly refers to two angles and the included side. AAS strictly refers to two angles and the non-included side. Markers are particular on this.
ASA strictly refers to two angles and the included side. AAS strictly refers to two angles and the non-included side. Markers are particular on this.
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