Similar Polygons

Front

What is the similarity statement for the triangle pair?

Back

ΔYZX~ΔNWE

Front

If ABCDE ∼ GHJDF, then∠B is congruent to _______

Back

∠H

Front

Solve for x. The two figures are similar: x = ?

Back

x = 6

Front

Determine if the triangles are similar. Justify: Yes, SSS. Scale Factor is 3:2. Yes, AA. Yes, SAS. Scale Factor is 3:2. No, not similar.

Back

No, not similar.

Front

Are the triangles similar? Why?

Back

Yes, AA.

Front

What does it mean for two polygons to be similar?

Back

Two polygons are similar if their corresponding angles are equal and the lengths of their corresponding sides are proportional.

Front

What is the AA criterion for similarity?

Back

The AA criterion states that if two angles of one triangle are congruent to two angles of another triangle, then the triangles are similar.

Front

What is the SSS criterion for similarity?

Back

The SSS criterion states that if the lengths of the corresponding sides of two triangles are proportional, then the triangles are similar.

Front

What is the SAS criterion for similarity?

Back

The SAS criterion states that if two sides of one triangle are proportional to two sides of another triangle and the included angles are congruent, then the triangles are similar.

Front

If two triangles are similar, what can be said about their areas?

Back

The ratio of the areas of two similar triangles is equal to the square of the ratio of their corresponding side lengths.