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Lesson
Triangles are compared through side and angle properties, and congruence proves two triangles are exactly equal in shape and size.
Learning objectives
Explain Triangles and Congruence with the correct Grade 9 Mathematics method.
Show the key step clearly instead of skipping from setup to answer.
Check the final form, sign, unit, or graph reading before finishing.
Lesson
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In this chapter
Now on Triangles and Congruence. Next up: Midpoint and Pythagoras Theorems.
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