Please help me on this question! Thank You!

Given: m∠ adb = m∠cdb ad ≅ dc prove: m∠ bac = m∠bca lol

Use the given information to determine the exact trigonometric value.

❤️ (geometry) does the construction demonstrate how to copy an angle correctly using technology a) yes; the distance between points a and f was used to create circle h b) yes; the distance between points f and g was used to create circle h c)no; the distance between points a and f was used to create circle h d) no; the distance between points f and g was used to create circle h