IDNLearn.com offers expert insights and community wisdom to answer your queries. Ask your questions and receive comprehensive, trustworthy responses from our dedicated team of experts.
Answer:
(a)
[tex]OA = \cos( \alpha ) [/tex]
(b)
[tex]AB = \sin( \alpha ) [/tex]
(c)
[tex]DC = \sin( \alpha ) [/tex]