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Learn what congruent lines are and how to identify them in geometry. Find out the properties and theorems of congruent lines and see examples and practice questions.
Two line segments are congruent if they have the same length. Two angles are congruent if they have the same measure. Two circles are congruent if they have the same diameter.
Learn the definition, symbol and construction of congruent line segments, which are line segments with the same length. Explore examples, interactive applet and related topics such as congruent angles and polygons.
Learn what congruent lines are and how to identify them by length, angle, symmetry, and parallelism. See examples of congruent lines in geometric shapes and proofs, and practice problems with answers.
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When one shape can become another using Turns, Flips and/or Slides, then the shapes are Congruent: Turn! Flip! Slide! After any of those transformations (turn, flip or slide), the shape still has the same size, area, angles and line lengths.
Learn what congruent means in math and how to identify congruent objects such as line segments, angles, circles and polygons. See the symbol for congruence and the tests for congruence of different shapes.
