AN ACUTE ANGLE IS AN ANGLE LESS THAN 90*

AN ANGLE THAT MEASURES 90*

LINES THAT INTERSECT THAT DON'T CREATE A RIGHT ANGLE

A STRAIGHT PATH ON A PLANE EXTENDING WITH NO END

AN ANGLE THAT IS GREATER THAN 90* AND LESS THAN 180*

TWO LINES IN A PLANE THAT ARE THE SAME DISTANCE APART

TWO LINES THAT INTERSECT TO FORM RIGHT ANGLES

AN EXACT LOCATION IN SPACE

BEGINS AT A ENDPOINT AND EXTENDS FOREVER IN ONE DIRECTION