Similarity and Congruence Proportions

Having the same size and shape; ^≅ (a)   .

• Congruent

• Similar

• Image

• Preimage

The point of intersection of lines through each pair of corresponding vertices in a dilation.

• Center of Dilation

• Dilation

• Transformation

• Center of Rotation

An increase in the size of all dimensions in the same proportions is called a(n) _____.

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

The ratio used to enlarge or reduce similar figures.

• Scale Factor

• Scale Drawing

• Transformation

• Congruent

What does congruent mean?

• corresponding sides and angles are congruent

• corresponding sides are proportional and corresponding angles are congruent

• sames shape

• neither sides or angles are congruent

Which definition below best describes the definition of congruent?

• corresponding sides and angles are the same measure.

• corresponding sides are proportional and corresponding angles are congruent

• same shape

• neither sides or angles are congruent

Find a.

• 80

• 16

• 20

• 5

Solve for x

• x=6

• x =1/6

• x = 7

• x=9

Figures with the same shape, but not necessarily the same size are _____.
Spelling Matters!!!

A transformation that results in an image that is the same shape, but not necessarily the same size, as the original figure is called (a)   .

• Similarity Transformation

• Congruence Transformation

• Transformation

• Dilation