Create an Octagon Inscribed in a Circle
1) Use the Line tool
to draw a line through the center of the circle and the given point on the circle.
2) Use the Intersect tool
to mark where this line intersects the circle.
3) Create a line perpendicular to this one that goes through the center of the circle.
4) Use the Intersect tool to mark where this line intersects the circle.
5) Use the Segment tool
to connect these four points, creating a square inscribed in the circle.
6) Create the perpendicular bisectors for two adjacent sides of this square.
7) Use the Intersect tool to mark where these two new lines intersect the circle.
8) Use the Polygon tool
to connect the eight points on the circle to create an octagon.
9) Use the Distance tool
and Angle Measure tool
to verify that this is a regular octagon.
to draw a line through the center of the circle and the given point on the circle.
2) Use the Intersect tool to mark where this line intersects the circle.
3) Create a line perpendicular to this one that goes through the center of the circle.
4) Use the Intersect tool to mark where this line intersects the circle.
5) Use the Segment tool to connect these four points, creating a square inscribed in the circle.
6) Create the perpendicular bisectors for two adjacent sides of this square.
7) Use the Intersect tool to mark where these two new lines intersect the circle.
8) Use the Polygon tool to connect the eight points on the circle to create an octagon.
9) Use the Distance tool and Angle Measure tool to verify that this is a regular octagon.