Prove that AABC and AEDC are similar 15 12 9 4 5 3
=
shows the corresponding sides are proportional; therefore, AABC – AEDC by the SAS Similarity Postulate.
15 12
5
shows the corresponding sides are
OZE and A are right angles, therefore, these angles are congruent since all right angles are congruent.
proportional; therefore, AABC - AEDC by the SSS Similarity Postulate.
12
shows the corresponding sides are
4
O LE and ZA are right angles, therefore, these angles are congruent since all right angles are congruent
proportional; therefore, AABC - AEDC by the SAS Similarīty Postulate.
shows the corresponding sides are proportional; therefore, AABC – AEDC by
15 12
O ZDCE is congruent to ZBCA by the Vertical Angles Theorem and
5
the SSS Similarity Postulate.
4