Can someone help me please

Given: circle o, cd is diameter, chord ab || cd. arc ab = 74°, find arc ca.

Nina has prepared the following two-column proof below. she is given that ∠oln ≅ ∠lno and she is trying to prove that ol ≅ on. triangle oln, where angle oln is congruent to angle lno nina made two errors in the proof. identify and correct the errors.

Acheetah can run 70 per hour. what is the speed in feet per hour