# L.E.Q. How do you identify congruent figures and their corresponding parts?

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L.E.Q. How do you identify congruent figures and their corresponding parts?

 The Same Shape and The Same Size.

 Polygons that have congruent corresponding parts – their matching sides and angles.

 Always list corresponding vertices in the same order.

 Sides:  Angles:

 The fins of the space shuttle discovery model congruent pentagons. Find.

 Two triangles are congruent if and only if they have 3 pairs of congruent corresponding sides and 3 pairs of congruent corresponding angles.

 Decide whether the triangles are congruent. Justify your answer. ◦ 3 Sides: ◦ 3 Angles:

 If 2 angles of one triangle are congruent to two angles of another triangle, then the third angles are congruent. ◦ So based upon the picture, we can conclude that…

 Use the info in the diagram to prove that. Give a reason why each statement is true.

 Suppose that 2 pentagons are congruent. How many pairs of congruent corresponding parts are there? Explain.

 Pgs. 182 – 183 #s 1 – 12, 16 – 28, 30 - 31.

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