The answers to the question are all attached given that they are all drawings. The subject here is shapes, lines, and angles.
What is a Triangle around a Point?
A triangle around a point is a triangle that is constructed such that a point is equidistant from all the angles and all the sides that triangle. This point is thus referred to as the circumcenter of the triangle.
The triangle in the attached image is drawn around point D.
What is a Line Segment?
A Line segment is the part of a line with two endpoints. The box in the diagram is drawn between points A and B.
What does it mean to circle an angle?
When you put a circle around an angle, you have circled that angle. This most case is used to highlight an angle.
Learn more about shapes at:
https://brainly.com/question/25965491
