Question

after another wind change, the weathervane has turned an additional 20° and stopped at point t. which name can be used for the 20° angle? ∠etv ∠evn ∠evt ∠nvt

Explanation:

Step1: Recall the angle - naming convention

An angle is named with the vertex in the middle. For example, \(\angle ABC\) has vertex \(B\).

Step2: Identify the vertex and sides of the \(20^{\circ}\) angle

The \(20^{\circ}\) angle has vertex \(V\). One side is \(VE\) (or \(EV\)) and the other side is \(VT\) (or \(TV\)).

Step3: Apply the naming rule

Using the angle - naming rule (vertex in the middle), the name of the \(20^{\circ}\) angle is \(\angle EVT\)

Answer:

\(\angle EVT\)