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Lines
Angles
Triangles
Vocab
Miscellaneous
100
two lines that are the same distance apart and will never touch
What is parallel lines
100
This is the term for a 90 degree angle
What is right angle
100
A triangle that has all sides the same length
What is equilateral
100

The point in the middle of an angle where the two rays touch

Vertex

100

A shape that has 5 sides is called

What is a pentagon

200
lines that intersect to form a right angle
What is perpendicular
200
An angle that is less than 90 degrees
What is acute
200
A triangle with two sides the same length
What is isosceles
200

Straight path that goes forever and ever in both directions

A line

200

A triangle can be classified based on its....

sides or angles
300
this has one endpoint and continues in one direction forever
What is a ray
300
an angle that is greater than 90 degrees
What is obtuse
300
A triangle with one angle greater than 90 degrees
What is obtuse triangle
300

A spot on a page with no size

A point

300

A triangle has two equal sides. What type of triangle is it?

Isosceles

400
This is part of a line
What is a line segment
400
this is the number of degrees in a straight angle
What is 180 degrees
400

A triangle with no sides the same length

Scalene

400

Something split in half, with equal on both sides

Symmetry

400

When two angles add up to 90 degrees

Complementary

500
This is a closed figure with at least 3 sides.
What is a polygon
500
This is used to measure angles
What is a protractor
500
All angles in every triangle will add up to this number of degrees
What is 180 degrees
500

When two angles add up to 180 degrees (straight line)

Supplementary

500

How can you tell if the measurement you get when measuring angles is correct?

Does it match acute or obtuse?