Google Classroom
GeoGebraGeoGebra Classroom
GeoGebra

Copy of Triangle Sum Theorem

Author:Judith Hilinski, William Richards

Click and hold on any of the buttons in the interactive app above. What do you notice happens when you change the measures of the interior angles?

Check my answer
Determine the measure of angle 1 in each of the following problems.
Image

What is the measure of angle 1 in triangle 1?

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

What is the measure of angle 1 in triangle 2?

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

What is the measure of angle 1 in triangle 3?

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

What is the measure of angle 1 in triangle 4?

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

What is the measure of angle 1 in triangle 5?

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

What is the measure of angle 1 in triangle 6?

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

What is the measure of angle 1 in triangle 7?

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

What is the measure of angle 1 in triangle 8?

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

New Resources

Discover Resources

Discover Topics