Question

a student is given ∠qos ≅ ∠rot and the diagram and asked to prove m∠qor = 56°. given: ∠qos ≅ ∠rot prove: m∠qor = 56° here is the student’s proof: 1. ∠qos ≅ ∠tor given 2. m∠qos = m∠rot definition of congruence 3. m∠qor + m∠ros = m∠tos + m∠ros angle addition 4. m∠qor = m∠tos subtraction property of congruence 5. m∠tos = 56° given 6. m∠qor = 56° subtraction property of equality where is the first error or skipped step in this proof? the reason for statemen...

Explanation:

Answer:

4
the subtraction property of equality should be used instead of the subtraction property of congruence