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.
Right triangle. A right triangle (American English) or right-angled triangle (British English) is a triangle in which one angle is a right angle (that is, a 90- degree angle). The relation between the sides and angles of a right triangle is the basis for trigonometry. The side opposite the right angle is called the hypotenuse (side c in the figure). The sides adjacent to the right angle are called legs (or catheti, singular: cathetus).