This is a GMAT math question that involves geometry and the use of triangular regions. There are no coordinates so there's no need to plot any dots and connect them to form a triangle. Rather, the question poses a hypothetical triangular region that involves both a circl and a triangle.
Specificlaly, this GMAT math question says that the vertex of the triangle is at the center of a circle with a specific radius value equal to one. So you can imagine the various dimensions of that triangle as we fixed the vertex at the center and move the remaining two points that are positioned along the circle.
The GMAT question here asks you to find the positioning of the triangle that has the largest possssible area. There's a little bit of visualization that's required to figure out what kind of triangle we're dealing with.
The explanation diagram and video shows the setup that we are looking for that maximizes the area of the triangle. From there, once you've established the type of triangle you are going after, it's just a matter of calculating the area of that triangle.
During this process, consider right triangles, isosceles triangles, obtuse triangles, etc.
source: GMAT Pill*
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