Measure Distance, Measure Angle dialog box

Access:

Ribbon: Tools tab Measure panel Distance Ribbon: Tools tab Measure panel Angle

Click the arrow to list options:

Restart	Clears the measurement from the Measurement box so that you can make another measurement.
Measure Distance	Measures length of a line, length of an arc, distance between points, radius and diameter of a circle, or position of elements relative to the active coordinate system.
Measure Angle	Measures the angle between two lines, edges, or points.
Add to Accumulate	Adds the measurement in the Measurement box to accumulate a total measurement.
Clear Accumulate	Clears all measurements from the accumulate, resetting the sum to zero.
Display Accumulate	Displays the sum of all measurements you added to the accumulate.
Dual Unit	Displays measured value in dual units.
Precision/ All Decimals	Displays eight formatting values and the option to display all decimals.