Google ClassroomGoogle Classroom
GeoGebraGeoGebra Classroom

IM Geo.3.10 Practice: Other Conditions for Triangle Similarity

Explain how we know that triangle  and triangle  are similar.

What does that tell us about angle ?

Find the length of .

Find the measure of angle .

Find the measure of angle .

Decide whether triangles and are similar in the applet below. Explain or show your reasoning.

What is the length of segment ?

Wähle alle richtigen Antworten aus
  • A
  • B
  • C
  • D
Antwort überprüfen (3)

In triangle , angle is 75º and angle is 20º. Select the triangle that is similar to triangle .

Wähle alle richtigen Antworten aus
  • A
  • B
  • C
  • D
Antwort überprüfen (3)

Sketch a pair of rectangles that are similar.

Determine if each statement must be true, could possibly be true, or definitely can't be true. Explain or show your reasoning.

Two line segments are similar.

Two angles are similar.

Figure G' is the image of Figure G by a dilation.

Where is the center of this dilation?

Estimate the scale factor.