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What is the definition of congruent triangles - congruent triangles

👉 Learn about congruent triangles theorems. Two or more triangles (or polygons) are said to be congruent if they have the same shape and size. There are many methods to determine whether two ...
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Geometry - What does congruency of AAS for triangles look like

👉 Learn about congruent triangles theorems. Two or more triangles (or polygons) are said to be congruent if they have the same shape and size. There are many methods to determine whether two ...
BBC

Congruent and similar shapes

Prove two triangles are congruent by showing they satisfy one of four criteria. Find missing lengths by using the scale factor. The relationship between similar shapes may be expressed as a ratio.
The Conversation

A brief illustrated guide to ‘scissors congruence’ − an ancient geometric idea that’s still fueling cutting‑edge mathematical research

In math class, you probably learned how to compute the area of lots of different shapes by memorizing algebraic formulas. Remember “base x height” for rectangles and “½ base x height” for triangles?