Topic 7 test review - similarity

Solve for x...solver para x... @@\frac{x}{10}=\frac{3}{5}@@

• 4

• 5

• 6

• 7

Are these triangles similar? If they are, which similarity theorem applies?

¿Son estos triángulos similares? Si es así, ¿qué teorema de similitud se aplica?

• They are similar, by SAS

• They are not similar

• They are similar, by SSS

• They are similar, by AA

Similar figures have ________ corresponding angles, and the sides have the same _____________

• congruent and scale factor

• parallel and length ratio

• equal and area ratio

• similar and proportion

Find the length of AB, to the nearest tenth...

Encuentra la longitud de AB, a la décima más cercana...

• 16.5

• 18.2

• 18.8

• 19.0

Are these triangles similar? If they are, which similarity theorem applies?

• Yes, they are similar; AA similarity theorem applies

• Yes, they are similar; SSS similarity theorem applies

• No, they are not similar; different scale factor

• Yes, they are similar; SAS similarity theorem applies

Are these triangles similar? If they are, which similarity theorem applies?

• They are similar, by SSS.

• They are not similar.

• They are similar, by AA.

• They are similar, by SAS.

True or false:

A scale factor of 1/6 means enlargement

Verdadero o falso: Un factor de escala de 1/6 significa ampliación

• True

• False

• It means no change

• It means doubling

There are 3 different kinds of cookies in a jar: 20 chocolate chip, 15 gingerbread and 12 peanut butter.
What is the ratio of chocolate chip cookies to peanut butter? (in simplest form)
Hay 3 tipos diferentes de galletas en un frasco: 20 con chispas de chocolate, 15 de pan de jengibre y 12 de mantequilla de maní. ¿Cuál es la proporción entre galletas con chispas de chocolate y mantequilla de maní? (en forma más simple)

• @@rac{5}{3}@@

• @@rac{4}{3}@@

• @@rac{5}{4}@@

• @@rac{3}{5}@@

Name all the types of dilations......

Nombra todos los tipos de dilataciones...

• enlargement and reduction

• expansion and contraction

• increase and decrease

• stretching and compressing

There are 3 different kinds of cookies in a jar: 20 chocolate chip, 15 gingerbread and 12 peanut butter.
What is the ratio of gingerbread to chocolate chip? (in simplest form)
Hay 3 tipos diferentes de galletas en un frasco: 20 con chispas de chocolate, 15 de pan de jengibre y 12 de mantequilla de maní. ¿Cuál es la proporción entre pan de jengibre y chispas de chocolate? (en forma más simple)

• @@rac{2}{5}@@

• @@rac{3}{5}@@

• @@rac{5}{3}@@

• @@rac{1}{2}@@