3.2.4 Similar Triangles

Front

What is the similarity statement for the triangle pair?

Back

ΔYZX~ΔNWE

Front

What type of angle pair is ∠1 and ∠5?

Back

corresponding angles

Front

Are these triangles similar? If so, why?

Back

SAS

Front

The pair of figures are similar. Find the missing side: If one triangle has sides 3, 4, and x, and the other has sides 9, 12, and 12, what is x?

Back

x = 12

Front

How do these triangles appear to be similar? (Hint: Look for non-labeled parts!)

Back

AA

Front

What is the definition of similar triangles?

Back

Triangles that have the same shape but may differ in size; their corresponding angles are equal and their corresponding sides are in proportion.

Front

What does AA stand for in triangle similarity?

Back

Angle-Angle; if two angles of one triangle are equal to two angles of another triangle, the triangles are similar.

Front

What does SAS stand for in triangle similarity?

Back

Side-Angle-Side; if two sides of one triangle are in proportion to two sides of another triangle and the included angles are equal, the triangles are similar.

Front

What does SSS stand for in triangle similarity?

Back

Side-Side-Side; if the corresponding sides of two triangles are in proportion, the triangles are similar.

Front

If two triangles have a similarity ratio of 2:3, what does this mean for their corresponding sides?

Back

The lengths of the corresponding sides of the triangles are in the ratio of 2:3.