Classifying Angles
Types of Triangles
Angle Measures
Parallel Lines
Right Triangles
100

Angles that are less than 90 degrees

Acute

100

Triangles that have all sides equal

equilateral triangles

100

The little box in the corner of a triangle or any figure represents what?

A right angle

100

Use the diagram to the right to determine the following,

If < 1 is 32 degrees, what is < 4?


32 degrees

100

What is the name of the side across from the right angle?

Hypotenuse

200

Angles that are equal to 180 degrees

Straight angles


200

Triangles that have no equal sides

scalene triangles

200

What is the measure of each interior angle of an equilateral triangle?

60 degrees

200

Use the diagram to the right to determine the following,

If < 3 is 48 degrees and < 6 is 2x + 20, what is x?


x = 14

200

What is the Pytharogean Theorem?

a2 + b2 = c2

300

Angles that are equal to 90 degrees

Right angles

300

Triangles that have two equal sides

isosceles triangles

300
How many angles are in a triangle?

3

300

Use the diagram to the right to determine the following,

what is the angle relationship between < 2 and < 7?


Alternate exterior

300

If the two legs of a triangle have a measure of 3 cm and 4 cm, what is the measure of the hypotenuse?

 

5 cm 

400

Angles that are greater than 90 degrees but less than 180 degrees

Obtuse angles

400

Triangles that have three angles less than 90 degrees

acute triangles

400

Can a triangle have these angle measures? 

30, 60, 90.

Yes they add up to 180.


400

Use the diagram to the right to determine the following,

what is the angle relationship between < 4 and <6?


Consecutive

400

If the hypotenuse of a triangle is 12 inches and one leg is 6 inches, what is the other leg?

10.4 inches

500

The number of degrees total in a triangle

180 degrees

500

Triangles that have one angle greater than 90 degrees

obtuse triangles

500

Solve for x if a triangle has the following angles:

34 degrees

68 degrees

2x - 10


x = 44

500

Use the diagram to the right to determine the following,

If < 7 is 98 degrees, what is <6?


98 degrees

500

Are the following sides to a right triangle?


7, 8 and 10



no

600
Name 3 types of angle pairs.

Vertical, linear, adjacent, supplementary, or complementary.

600

Triangles that have one 90 degree angle

right triangle

600

If one angle in a linear pair is 5 degrees, what is the other angle's measurement?

185 degrees

600

Use the diagram to the right to determine the following,

If < 5 equals (x+80) degrees and <4 equals (2x - 20), what is x?


x = 100

600

Carlos flies a drone 8 feet in front of him and then 14 feet to his right.  How far away is the drone from Carlos?


16.1 feet

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