ANGLE MEASURES
LINES.LINES.LINES
Transversals & Such
Angle Friends
Triangles
100
An angle that measures 90 degrees
What is a right angle?
100
lines in the same plan that never intersect

What are parallel lines?

100

angles between 2 parallel lines on opposite sides of the transversal

What are alternate interior angles?

100

Two angles that add up to 90 degrees

What are complementary angles?

100

A triangle with 3 acute angles

What is an acute triangle?

200

An angle that measures less than 90 degrees

What is an acute angle?
200

Lines that intersect to form right angles

What are perpendicular lines?

200

angles outside of the parallel lines on opposite sides of the transversal

What are alternate exterior angles?

200

2 angles whose sum is 180 degrees

What are supplementary angles?

200

A triangle with 3 equal sides

What is an equilateral triangle?

300

90<ANGLE<180

What is an obtuse angle?

300

Lines that cross each other at any point

What are intersecting lines?

300

Angles on the same side of the parallel lines, along the same side of the transversal

What are corresponding angles?

300

two angles that have a common side between them and share a common vertex

What are adjacent angles?

300

A triangle with 2 equal sides

What is an ososceles triangle?

400

An angle that measures more than 180 degrees but less than 360 degrees

What is a reflex angle?

400

A line that intersects 2 or more lines

What is a transversal?

400

The angles that are formed when two lines intersect and form opposite angles are equal. 

True or False

What is True?

400
When two lines intersect they form two pairs of opposite angles. 

What are vertical or opposite angles?

400

Can you form a triangle when the sum of the 2 shorter sides is less than or equal to the longest given side?

What is no?

500

The sum of the interior angles of a triangle

What is 180 degrees?

500

What three pieces of information do you need to draw a triangle?

What are Sides, angles or a combination of both?