44. Wednesday: 12/16 ~~ Similar Triangles

44. Wednesday: 12/16

Topics 1-2: Similar Triangles

Open Ended

What is the difference between congruent Triangles and similar triangles?

Fill in the Blank

What information do we need in order to determine if two

triangles are similar?

Fill in the Blank

Choose the best answer choice from the green field to complete the sentence

below. Justify your answer.

Congruent triangles are always I sometimes |never similar triangles

Fill in the Blank

Choose the best answer choice from the green field to complete the sentence

below. Justify your answer.

Similar triangles are always I sometimes |never congruent triangles

Fill in the Blank

Determine  $m\angle M$  

Fill in the Blank

Determine  $m\angle B$  

Open Ended

Compare the two angles.

Open Ended

If you know that two pairs of corresponding angles are congruent, what must be true of the third pair of angles?

Multiple Choice

Calculate the scale factor from the large triangle to the small triangle 

• 2

•  $\frac{1}{2}$  

•  $\frac{3}{2}$  

• 4

Multiple Choice

Calculate the scale factor from the small triangle to the large triangle 

• 2

•  $\frac{1}{2}$  

•  $\frac{3}{2}$  

• 4

Multiple Choice

Determine whether Δ ABC and Δ DEF are similar, not similar, or cannot be determined from the information given in the figure.

• Similar by AA~

• Not similar

• can not be determined from the given information

• Similar by SAS~

Multiple Choice

Determine whether Δ ABC and Δ DEF are similar, not similar, or cannot be determined from the information given in the figure.

• Similar by AA~

• Not similar

• can not be determined from the given information

• Similar by SAS~

Multiple Choice

Determine whether Δ ABC and Δ DEF are similar, not similar, or cannot be determined from the information given in the figure.

• Similar by SSS~

• Not similar

• can not be determined from the given information

• Similar by SAS~

Multiple Choice

Determine whether Δ ABC and Δ DEF are similar, not similar, or cannot be determined from the information given in the figure.

• Similar by SSS~ and AA~

• Not similar

• can not be determined from the given information

• Similar by SSS~

• Similar by AA~