Question

name the plane that is highlighted in the diagram below.

Explanation:

Step1: Recall plane naming rule

A plane can be named by three non - collinear points on the plane.

Step2: Identify points on the highlighted plane

The highlighted plane contains points Q, R, S, and T. We can use three of these non - collinear points. Taking points Q, R, S (or any three non - collinear points from Q, R, S, T), the plane can be named as plane QRST (or using any three of the four points, e.g., plane QRS, plane QRT, plane QST, plane RST, but the most common way is to use all four non - collinear points or three of them in order). Looking at the diagram, the four points on the highlighted plane are Q, R, S, T, so the plane is plane QRST (or using three points like plane QRS, but typically we can name it using the four vertices as they are non - collinear and form the plane).

Answer:

Plane QRST (or other valid names using three non - collinear points from Q, R, S, T, e.g., Plane QRS, Plane QRT, Plane QST, Plane RST)