161k views
5 votes
A is 3 cm C is 4 cm B is 5 cm What is the degrees of B. Round answer to one decimal place.

A is 3 cm C is 4 cm B is 5 cm What is the degrees of B. Round answer to one decimal-example-1
User Drsnark
by
8.7k points

1 Answer

6 votes

The segment AB is:


\sqrt[]{3^2+4^2}=5

So now we can use the sin law to calculate the angle B so:


(\sin(90))/(5)=(\sin (B))/(3)

and we solve for B so:


\begin{gathered} \sin ^(-1)((3)/(5))=B \\ 36.9º=B \end{gathered}

User Sapar Friday
by
8.5k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories