Compare your answers


  1. Consider the two trianlges below.



    1. Explain why the two triangles must be similar.

      Two pairs of angles are equal, so the third pair must also be equal. Three pairs of equal angles means the triangles must be similar.

    2. State two pairs of corresponding sides.

      a corresponds to d and b corresponds to c.


    3. If , what must equal? Explain.

      Similar triangles have the same ratio of corresponding side lengths, so .

    4. If and , what must equal?