49.8k views
0 votes
Please answer this question now

Please answer this question now-example-1
User Jeffm
by
4.2k points

1 Answer

2 votes

Answer:

112°

Explanation:

By inscribed angle theorem:


m\widehat {BCD} = 2* m\angle BAD\\</p><p>\therefore m\widehat {BCD} = 2* 129\degree \\</p><p>\therefore m\widehat {BCD} = 258\degree\\\\</p><p>\because m\widehat{CD} = m\widehat {BCD}-m\widehat{BC} \\</p><p>\therefore m\widehat{CD} = 258\degree - 146\degree \\</p><p>\huge \red {\boxed {\therefore m\widehat{CD} = 112\degree}}

User Konstantin Rudy
by
4.1k points