Use the Dot Product to Find $|\mathbf{v}|$ - $$\mathbf { v } = \langle 3,8 \rangle$$

Multiple Choice

Use the dot product to find $|\mathbf{v}|$
- $$\mathbf { v } = \langle 3,8 \rangle$$

A) $\sqrt { 73 }$
B) $\sqrt { 55 }$
C) 5
D) 11