Use the slider to change the size of the angles and the check box to show the size of the angles.
If angle A is 65 degrees, what is angle C?
If angle B is 115 degrees, what is angle D?
If angle A is 80 degrees, what is angle B?
Look at the values of angles C and D in the applet above. How can we calculate the value of angle D if the value of angle C is given.
Name the type of angle formed by angle C and D? Also give an another example of it from the applet above.