Solved

Use Vectors to Find the Measure of the Angle at Vertex

Question 7

Multiple Choice

Use vectors to find the measure of the angle at vertex B of triangle ABC,when A=(5,1) A = ( 5,1 ) , B=(−5,1) B = ( - 5,1 ) ,and C=(−3,−5) C = ( - 3 , - 5 ) .Round answer to two decimal places.


A) 69.48°
B) 71.57°
C) 72.91°
D) 70.38°
E) 74.09°

Correct Answer:

verifed

Verified

Unlock this answer now
Get Access to more Verified Answers free of charge

Related Questions

Q2: Find the angle between the vectors

Q3: Determine the work done by a crane

Q4: Use the vector <span class="ql-formula"

Q5: ​Find the projection of u onto

Q6: The vector <span class="ql-formula" data-value="\mathbf

Q8: Given <span class="ql-formula" data-value="\mathbf {

Q9: Use the dot product to find

Q10: Determine whether u are v and

Q11: Determine <span class="ql-formula" data-value="u^.v"><span class="katex-display"><span

Q12: Determine whether u are v and