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Vocabulary
Angles
Angles Part II
Triangles
Parallel Lines/Angles
100

a figure that starts at an endpoint and goes infinitely in one direction.

What is a ray.

100
How many rays form the sides of an angle?
What is 2.
100
An angle that measures between 90 and 180 degrees.
What is an obtuse angle.
100

A triangle that has 2 congruent sides

Isosceles

100
Two angles that are across from each other, formed by two intersecting lines.
Vertical Angles
200

A basic geometric object that has two endpoints.

What is a line segment.

200
The name of the point where an angle 'bends.'
What is the vertex.
200
An angle that measures between 0 and 90 degrees.
What is an acute angle.
200

The angles of a triangle are 30o, 70o, and 80o How would this triangle be classified?

Acute, Scalene

200
Two angles adjacent to each other and supplementary.
What is a Linear Pair
300

A geometric object that goes infinitely in two directions.

What is a line.

300
The name given to non-adjacent angles formed by intersection lines.
What is vertical or opposite angles.
300
Two angles that share one side and form a line with the non-sharing sides.
What are a linear pair.
300
Two angles in a triangle measure 44 and 63, what is the measure of the missing angle?

83 degrees

300

Two angles that are on opposite sides of the transversal and inside of the two lines.

Alternate Interior

400

A line, segment, or ray that cuts an angle or another segment into 2 congruent pieces (in half).

What is a bisector.

400
Two angles who sum of measures is 90 degrees.
What are complementary angles
400
Two angles whose sum of measures is 180 degrees.
What are supplementary angles.
400

If the legs of a right triangle are 3 inches and 4 inches, what is the length of the hypotenuse?

5 inches

400

The relationship between two corresponding angles when lines are parallel.

What is congruent.

500

Formed by two rays that have a common endpoint.

What is an angle.

500
An angle measures 30 degrees, what is the measure of the angles complement?
What is 60 degrees.
500
An angle measures 100 degrees, what is the measure of the angles supplement?
What is 80 degrees.
500

Find the length of the leg of a right triangle if the hypotenuse is 15cm and one leg is 9cm.

12cm

500

The relationship between two Same-Side Interior angles, when lines are parallel.

What is Supplementary?