Educational & College Advising from College Coach. Working parents are increasingly distracted by concerns about their childrenâs education â how theyâll pay for college, whether their young children will be successful in school, navigating the new Common Core, and more.
Definition of right angle for Students. : an angle formed by two lines that are perpendicular to each other : an angle of 90 degrees.
1. countable noun. 1  A right angle is an angle of ninety degrees. 2  the angle between two radii of a circle that cut off on the circumference an arc equal in length to one quarter of the circumference; an angle of 90Â° or Ï/2 radians. 3  an angle of 90 degrees; angle made by the meeting of two straight lines perpendicular to each other.