Given: as ≅ ks; ∠6 ≅ ∠ 9;

using the given information, which postulate justifies that δ asc ≅ δ ksc?
a) aas
b) asa
c) sas
d) sss

1. ∠1 is complementary to ∠2 and ∠3 is complementary to ∠2. subtraction property of equality 2. m∠1 + m∠2 = 90 and m∠3 + m∠2 = 90 substitution 3. m∠1 + m∠2 = m∠3 + m∠2 definition of complementary 4. m∠1 = m∠3 given