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DO NOW
DO NOW
LEARNING TARGET
LEARNING TARGET
I can prove two triangles are congruent using the SAS and SSS postulates.
I can prove two triangles are congruent using the SAS and SSS postulates.
I DO
I DO
Why do we want to do this?
Yesterday, we proved two figures were congruent by proving ALL of their corresponding parts are congruent. While this works, it's way more work than is needed to prove two triangles are congruent. Instead, we only need to prove:
How about some examples?
Are these two triangles congruent? How do you know?
Are these two triangles congruent? How do you know?
In triangle ABC, what angle is included between sides AB and BC? What side is included by angles B and C?
WE DO
WE DO
With your neighbor, answer these questions:
With your neighbor, answer these questions:
YOU DO
YOU DO
More practice for a 4!
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