Circle O is circumscribed about triangle ABC. is a diameter of Circle O and Point O is the of AB

Name these type of angles shown check all that applies

15 and 14.7 are 1 apart, so 15 – 14.7 must be 1.

Given: ae ≅ ce ; de ≅ be prove: abcd is a parallelogram. we have that ab || dc. by a similar argument used to prove that △aeb ≅ △ced, we can show that △ ≅ △ceb by. so, ∠cad ≅ ∠ by cpctc. therefore, ad || bc by the converse of the theorem. since both pair of opposite sides are parallel, quadrilateral abcd is a parallelogram.