Are these triangles similar, congruent, or neither?
Angle Relationships
What your angle?
Draw those angles!
Triangle Sum
100

Triangle A:Side lengths-10,7,9 Angles-30, 100, and b

Triangle B:Side lengths- 10, 7, and 9 Angles- 100, 30, c

Congruent!


100

What is the relationship between 2 angles whose sum is 90 degrees?

What are complementary angles? 

100

Write an equation to solve for h

What is h=60? 

100

Draw 4 angles that are 90, 180, 270, and 360.

Let's take a look before I say anything about points.

100

The sum of all angles must equal exactly ___________

What is 180 degrees? 

200

Triangle A:Side lengths-10,12,17 Angles-20, a, and b

Triangle B:Side lengths- 10, x, and y Angles- 100, 60, c

Congruent

200

Draw a straight 2 straight lines crossing each other and label 2 angles that are directly opposite of each other as x and y. What do you know about the measure of x and y?

They are the same!

200

Write an equation to solve for p

What is p=27?

200

Draw 2 angles that add up to 90 degrees, label all angles with degrees that make this true.

I hope you got it but I need to see it first...

200

Do these angles create a triangle? 

And these 100, 50, and x?

Yes! and Yes!

300

Triangle A:

Side lengths-4,9,12 Angles-80, 70, and b

Triangle B:

Side lengths- 4, 10, and x Angles- 30, 70, c

Similar!

300

What is the relationship between two angles whose sum is 180 degrees? 

What are supplementary angles? 

300

Write an equation and solve for x 

What is x=45?

300

Draw 3 angles that add up to 180 degrees, label all angles with degrees that make this true.

.....and you created.....

300

Do these angles create a triangle? 

Could these 100, 90, and x?

No! and No!

400

Triangle A:Side lengths-unknown Angles-20, 80, and b

Triangle B:Side lengths- unknown Angles- 20, 60, c

Not related!

400

What is the relationship between these 2 angles? 

What are complementary angles? 

400

Write an equation to solve for x

What is x=12? 

400

Draw 2 angles that add up to 270 degrees, one angle must be labeled as 200 degrees, find the missing angle.

....I have to see what you drew

400

Write and solve an equation to find the missing 3rd angle

What is 54 degrees? 

500

Both triangles are right triangles and triangle A has a angle of 50 and triangle B has an angle of 40. Are these related? Can you tell if they are similar or congruent?

Similar or Congruent but you can't tell which!

500

What is the relationship between these 2 angles? 

What are supplementary angles? 

500



Write an equation to solve for the variable

What is x=15?

500

Draw 3 or 4 angles that add up to 360 degrees, label all angles with degrees that make this true.

I don't know, lets see what you made!

500

Write and solve an equation to solve for the variable

What is x=12?

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