https://study.ashworthcollege.edu/access/content/group/59841a3a-ae83-40e0-9ad2-cdbb53b336a0/Geometry%20Part%20I/Pretest_Final%20Exam%20Images/Image%2041.JPG find the measure of a.

Question

thesmartone · Answer

Use law of cosines https://encrypted-tbn3.gstatic.com/images?q=tbn:ANd9GcSylhOfLn1IzFaHzrTujFBbxPwqUF2qW3djQ8wqtIr8sSL_2vIT c^2 = a^2 + b^2 - 2abcosC a and b are the two side lengths we know, C is the angle we know and we're solving for little c which is the side.

deycallsmepookie · Answer

I went back through my notes to figure it out, but thank you. :)

thesmartone · Answer

Anytime! :)