Tutor

Problem

Protractor Demo
You can move rays A and E by clicking and dragging, or by specifying an angle for ABD in the box on the right.

You can change the labels by clicking on the "Label" button, and change labels to radians by clicking on the "Radians" button
(Note that for radian values to display, you need to have labels displaying with label code of 1, 2, or 3)
Even if radians are selected, the compass reports values as degrees.

You can change the increments on the compass using the increment input box. Check the snap box to enable snapping to your increments.

Problem Solving


Please input a whole
number in degrees
between 0 and 180.
Angle ABC:
Angle EBC:
Angle EBD:
Angle ABE:


Please input a value
between 10 and 90
that evenly divides 180.
2 0
Snap
Example Problem with Feedback