Similar Triangles

Front

If two triangles are similar, their angles are ______.

Back

congruent

Front

What is the scale factor from ΔABC to ΔDEF if the sides are in the ratio 2:1?

Back

2

Front

If the two triangles are similar, what is the measurement of x if the corresponding sides are in the ratio 1:2 and one side is 4 ft?

Back

2 ft

Front

The two given triangles are similar, what is the value of the missing side if one side is 5 and the corresponding side is 7?

Back

7

Front

If the two triangles are similar, what is the measurement of x if the corresponding sides are in the ratio 3:4 and one side is 15?

Back

20

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 proportional.

Front

If triangle A has sides of 3, 4, and 5, and triangle B has a side of 6, what is the length of the corresponding side in triangle B?

Back

8 (using the scale factor of 2).

Front

What is the relationship between the sides of similar triangles?

Back

The ratios of the lengths of corresponding sides are equal.

Front

If two triangles are similar and one triangle has a perimeter of 30, what is the perimeter of the other triangle if the scale factor is 2?

Back

60.

Front

If triangle X is similar to triangle Y and the length of a side in triangle X is 10, what is the length of the corresponding side in triangle Y if the scale factor is 3?

Back

30.