Congruence
Scale Factor and Dilations
Similar Figures
Missing sides of similar figures & Quadrilaterals
Similar Triangles
200
What does it mean for two shapes to be congruent?
What is same size AND same shape?
200
What variable do we use to denote scale factor?
What is k?
200
What does it mean for two shapes to be similar?
Same shape, different size
200
The following figures are similar. Find the missing value.
What is x = 11?
200
The three ways to prove triangles similar.
What is AA~, SSS~, SAS~?
400
For figures to be congruent, what has to be true about the corresponding sides?
What is corresponding side lengths must be equal?
400
Find the scale factor of the similar figures (from left to right)
What is 3/2?
400
For figures to be similar, what has to be true about the corresponding angles?
Corresponding angles have to be congruent
400
The following figures are similar. Find the missing value.
What is x = 3.5?
400
Are the following triangles similar? If so, what is the shortcut?
What is SSS~?
600
What are the 5 congruence postulates?
What are SSS, SAS, ASA, AAS, and HL?
600
Find the scale factor of the two similar figures (from left to right)
What is 3?
600
For figures to be similar, what has to be true about the corresponding sides?
Corresponding sides have to be proportional.
600
In rhombus DOGS, DO = 2p + 9
and OG = 3p - 6.
Find p.
What is 15?
600
Are the following triangles similar? If so, why?
No, the sides are not proportional.
800
Which transformations result in congruent figures?
What are rotations, reflections, and translations?
800
Find the scale factor of the similar figures (from left to right)
What is 4/3?
800
Are these figures similar?
Yes, the corresponding angles are congruent and the sides are proportional
800
The following figures are similar. Find the missing value.
What is x = 50 feet?
800
Are the following triangles similar?
What is AA~?
1000
If △LMN ≅ △PQR and ∠NLM = 105, what is ∠P ?
What is 105?
1000
Find the scale factor of the two similar figures (from smallest to largest)
What is 11/4?
1000
Are these figures similar?
No, the corresponding angles are congruent, but the sides are not proportional
1000
Given a quadrilateral and
m∠A = 3x+9 m∠B = 5x+20
m∠C = 3x m∠D = 2x+6
Find m∠D.
*Hint angles in a quadrilateral add to 360.
m∠D = 56
1000
Are the following triangles similar? If so, why?
What is SAS~?