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 by three points, with the vertex in the middle.

Step2: Identify the vertex and the two rays forming the \(20^{\circ}\) angle

The vertex of the \(20^{\circ}\) angle is \(V\). The two rays forming the angle are \(VN\) and \(VT\).

Step3: Name the angle using the three - point notation

Using the three - point notation for an angle (\(\angle\) vertex letter in the middle), the angle with vertex \(V\), one ray \(VN\) and the other ray \(VT\) is named \(\angle NVT\).

Answer:

\(\angle NVT\)