Right angles are created by perpendicular lines. You first have to find the slopes of the lines. You know lines are perpendicular when the slopes are negative reciprocals. For example: If you find the slope of Line AB to be -2, in order for the lines to form right angles, the following line would have to be 1/2. So getting back to your question, calculate the slopes and show they are negative reciprocals. Hope I Helped!
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Lacrosse uses geometry when shooting and passing. Having the right angle on the stick will help control the ball and the where it goes.
No because it could be an irregular quadrilateral that includes a right angle. A rectangle has four right angles.Yes, a parallelogram with a right angle is always a rectangle. In fact, in my geometry book, some 55 years ago, such was the definition of rectangle.A parallelogram with one right angle will always have four right angles.It is true that you can draw an irregular quadrilateral with a right angle which is not a rectangle but the figure will not be a parallelogram.
A 99-degree angle is called an obtuse angle. In geometry, an obtuse angle is an angle that measures between 90 and 180 degrees. It is larger than a right angle (90 degrees) but smaller than a straight angle (180 degrees).
In plane geometry, a shape with four sides, two of which are parallel and have the same length, cannot have a reflex angle.
right...Each corner of a square is called a "right angle" and measures 90 degrees with a protractor.a 90o angle, also called a right angle