Similar Triangles Proportions Flashcard Review Day 1

Front

Matching sides are called

Back

Corresponding Sides

Front

Sides in similar figures must be proportional. True or False?

Back

True

Front

Find the perimeter of a triangle with sides 12 ft, 12 ft, and 12 ft.

Back

36 ft

Front

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

Back

Their corresponding angles are equal.

Front

If triangle ABC is similar to triangle DEF, and the length of side AB is 4 ft and side DE is 8 ft, what is the ratio of their corresponding sides?

Back

1:2

Front

What is the definition of similar triangles?

Back

Triangles that have the same shape but may have different sizes.

Front

If the sides of two similar triangles are in the ratio 3:5, what is the ratio of their areas?

Back

9:25

Front

Solve for X: If triangle ABC is similar to triangle DEF and AB/DE = 2/5, find X if DE = 10 ft and AB = X.

Back

X = 4 ft

Front

What is the relationship between corresponding sides of similar triangles?

Back

They are proportional.

Front

If the length of one side of a triangle is doubled, what happens to the area of the triangle?

Back

The area is quadrupled.