# Start, End, Radius

Start, End, Radius command generates an arc, given two ends and the radius.

## Step 1

While "Specify start point of the arc" prompt is displayed, specify the start point of the arc to generate.

## Step 2

While "Specify end point of the arc" prompt is displayed, specify the end point of the arc to generate.

- Pressing the key `"D"` will change the mode from specifying end point to specifying tangent Direction at the start point.

- Pressing the key `"T"` will change the mode from specifying end point to through points.

## Step 3

While Arc Radius and Direction prompt is displayed, specify the direction of the arc to generate by mouse click. The preview of the arc is update according to the mouse position. Click mouse when a desired arc is drawn.

- Pressing the key `"R"` will show a dialogue box to specify radius. The initial radius shown in the dialoguse is the half of the length from the start to end point specified. Input a value greater than it. In this case, arc generated is not half circl.