Complementary Angles Investigation

Topic:
Angles
In the applet below, the pink angle and the blue angle are said to be complementary angles. Interact with this applet for a minute or two, and answer the questions that appear below it.

What happens when you slide the Pink Slider?

Select all that apply
  • A
  • B
  • C
  • D
Check my answer (3)

2.

In the applet above, the blue angle is said to be a complement of the pink angle, and vice versa. Given this information, determine the complement of a 40 degree angle.

Select all that apply
  • A
  • B
  • C
  • D
Check my answer (3)

3.

What is the complement of a 1-degree angle?

Select all that apply
  • A
  • B
  • C
  • D
Check my answer (3)

4. Challenge:

What angle measure has a complement whose measure is equal to itself?

Select all that apply
  • A
  • B
  • C
  • D
Check my answer (3)

Quick (Silent) Demo: (0:00 - 0:30)