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hi there, I think there is a problem for #159 of CW/HW. Given b=19 and a=14, which means angle B is greater than angle A a, but the answer key says that angle A =86.8 and angle B=68.2, which cannot be the case. Also for #6 in unit review, none of the choice is the correct answer and according to the answer key, i guess the question should be sin255 instead of sin225. 

Teresa

Hi there, me again. There is another mistake in unit review question 3, none of the answers is the correct one. Please revise.

Regards,
Teresa

Dear Teresa Chu,

Thank you for your comments. I am in agreement that the original solutions for #159 and review #3 were incorrect. As stated in your message also, the angle in review question #6 should have been 255 degrees. All three of these problems and/or solutions have been updated. Please download an updated copy of the Classwork-Homework file at your convenience.

Please let us know if more information is needed or any questions arise.

Kind regards,

Audra