Question

Which of the following diagrams shows a circle circumscribed about a triangle?(1 point)
Responses

A dotted circle, a triangle, and three lines are plotted within a grid of 5 rows by 5 columns. A right triangle with vertices upper A, upper B, and upper C is plotted. A point upper G is plotted within the triangle, which is the center of a circle.
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The circle is drawn with center as upper G and it extends outside the 3 sides of the triangle. Point upper E is the midpoint of side upper A upper C, point upper D is the midpoint of side upper B upper C, and point upper F is the midpoint of side upper A upper B. Three lines passing through each of the vertices and the center of the circle are plotted. The first line passes through points upper A upper G upper D, the second line passes through upper B upper G upper E, and the third line passes through upper C upper G upper F.
A dotted circle, a triangle, and three lines are plotted within a grid of 5 rows by 5 columns. A right triangle with vertices upper A, upper B, and upper C is plotted. A point upper G is plotted within the triangle, which is the center of a circle.

A dotted circle, a triangle, and three lines are plotted within a grid of 6 rows by 5 columns. A right triangle with vertices upper A, upper B, and upper C is plotted. A point upper D is plotted within the triangle, which is the center of the circle.
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The circle drawn with center as upper D touches the three sides of the triangle. Three lines, each extending from one end of the grid to the other, passes through each of the vertecies and the center of the circle. The first line passes through upper A upper D, the second through upper B upper D, and the third through upper C upper D.
A dotted circle, a triangle, and three lines are plotted within a grid of 6 rows by 5 columns. A right triangle with vertices upper A, upper B, and upper C is plotted. A point upper D is plotted within the triangle, which is the center of the circle.

A dotted circle and a triangle are plotted within a 6 by 6 grid. The midpoint of the grid is marked as upper A.
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With upper A as the center, a dotted circle is drawn well within the grid. Point upper C is marked on the top right corner of the grid. Point upper B is marked on the left side of the circumference of the circle. Points upper A upper B upper C are joined to form a triangle.
A dotted circle and a triangle are plotted within a 6 by 6 grid. The midpoint of the grid is marked as upper A.

Triangle upper A upper C upper B is plotted within a circle on a 12 by 9 unit grid. A point inside the triangle is labeled circumcenter.
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Segment upper A upper B is 5 units along the base, with point upper A on the left and upper B on the right. Point upper C is 3 units up and 1 unit right of point upper A. Points are plotted on each vertex. A circle passes through points upper A upper B upper C. A point inside the triangle, and the center of the circle, is labeled circumcenter.
Triangle upper A upper C upper B is plotted within a circle on a 12 by 9 unit grid. A point inside the triangle is labeled circumcenter.
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Answer 1

The fourth diagram (the last option). It shows a circle passing through vertices A, B, and C with the circumcenter marked — that is a circle circumscribed about the triangle.