12.4 Practice

12.4 Practice

You will submit your scratch work to Canvas.

Multiple Choice

If  $\angle D\ \cong\ \angle CED$  , then 

•  $\overline{EC}\ \cong\ \overline{CD}$  

•  $\overline{EC}\ \cong\ \overline{ED}$  

•  $\overline{AE}\ \cong\ \overline{ED}$  

•  $\overline{CD}\ \cong\ \overline{ED}$  

Multiple Choice

If  $\angle EBC\ \cong\ \angle ECB$  , then 

•  $\overline{EC}\ \cong\ \overline{EB}$  

•  $\overline{EC}\ \cong\ \overline{BC}$  

•  $\overline{EB}\ \cong\ \overline{BC}$  

•  $\overline{CD}\ \cong\ \overline{ED}$  

Multiple Choice

If  $\overline{AE}\cong\overline{DE}$  , then  

•  $\angle EAB\ \cong\angle EBA$  

•  $\angle EAB\ \cong\ \angle EDC$  

•  $\angle EBA\ \cong\ \angle ECB$  

•  $\angle ECB\ \cong\ \angle EDC$  

Multiple Choice

If  $\overline{AB}\cong\overline{EB}$  , then  

•  $\angle EAB\ \cong\angle EBA$  

•  $\angle EAB\ \cong\ \angle AEB$  

•  $\angle EBC\ \cong\ \angle ECB$  

•  $\angle ECD\ \cong\ \angle EDC$  

Fill in the Blanks

 $x=$  

Fill in the Blanks

 $x=$  

Multiple Select

Find the values of x and y.

• x = 79

• y = 101

• x = 22

• y = 79

• y = 22

Multiple Select

Find the values of x and y.

• x = 60

• y = 60

• x = 120

• y = 120

• y = 45

Multiple Select

Find the values of x and y.

• x = 30

• x = 60

• y = 40

• y = 5

• x = 40

Open Ended

Describe and correct the error in finding the length $\overline{BC}$  .

Multiple Select

The base of isosceles $\Delta XYZ\$  is  $\overline{YZ}$  . What can you prove? Select all that apply. 

•  $\overline{XY}\ \cong\ \overline{XZ}$  

•  $\angle Y\cong\angle Z$  

•  $\angle X\cong\angle Y$  

•  $\overline{YZ}\ \cong\overline{\ ZX}$  

Fill in the Blanks

Find the perimeter of the triangle.

Fill in the Blanks

Find the perimeter of the triangle.