4.3. Congruent Triangles http://www.ck12.org
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Based on the following details, are the triangles definitively congruent?
- Both triangles are right triangles in which one angle measures 55◦. All of their corresponding sides are
congruent. - Both triangles are equiangular triangles.
- Both triangles are equilateral triangles. All sides are 5 inches in length.
- Both triangles are obtuse triangles in which one angle measures 35◦. Two of their corresponding sides are
congruent. - Both triangles are obtuse triangles in which two of their angles measure 40◦and 20◦. All of their corresponding
sides are congruent. - Both triangles are isosceles triangles in which one angle measures 15◦.
- Both triangles are isosceles triangles with two equal angles of 55◦. All corresponding sides are congruent.
- Both triangles are acute triangles in which two of their angles measure 40◦and 80◦. All of their corresponding
sides are congruent. - Both triangles are acute triangles in which one angle measures 60◦. Two of their corresponding sides are
congruent. - Both triangles are equilateral triangles.