Better Students Ask More Questions.
triangle ABC <B =?ab =root 7 ac =4 bc =6
1 Answer | add yours
High School Teacher
Given triangle ABC with AB=`sqrt(7)` ,AC=4 and BC=6 find the measure of angle B:
Use the law of cosines: `c^2=a^2+b^2-2abcosC`
The angle has measure of approximately 20.4 degrees.
Posted by embizze on January 25, 2013 at 12:58 PM (Answer #1)
Join to answer this question
Join a community of thousands of dedicated teachers and students.