A right angle sits at 90o, which is right in the middle. Anything less than 90o, or to the left on the protractor are acute angles. Anything to the right, or bigger than 90o, would be considered an obtuse angle. A good way to remember this is that an acute angle is "a cute little angle."
Assuming you've got a 180o protractor (and not a 360o angle measurer).To measure an acute, right or obtuse angle (ie 0o to 180o):Place the centre mark of the protractor on the centre of the angle (ie where the arms of the angle meet)Put one of the base lines (which will be marked 0o and 180o) on one of the arms of the angle, so that the other line of the angle is within the scale of the protractor.Use the scale which starts with 0o on the first arm to read off the angle to the other arm.To measure a reflex angle (ie 180o to 360o):Place the protractor centre as abovePut the base line as aboveUse the scale which starts with 180o on the first arm to read off the angle to the other arm.Add 180o to the angle found in step 3.
It could be a trapezoid having 2 right angles, an obtuse angle and an acute angle
A protractor is used to draw a right angle of 90 degrees.
Scale, protractor,compass,divider,set square
Many infinite sets appear in mathematics: the set of counting numbers; the set of integers; the set of rational numbers; the set of irrational numbers; the set of real numbers; the set of complex numbers. Also, certain subsets of these, such as the set of square numbers, the set of prime numbers, and others.
Two acute angles and two obtuse angles. If you do not know what these angles are, I will show you. An acute angle is an angle that has less than 90 degrees on your protractor (Shaped like a semi-circle. Found in a mathematical set). An obtuse angle has more than ninety degrees. An angle with ninety degrees is a right angle.
You measure angles from either side of the protractor. One set of numbers measures from the left side, the other measures from the right side.
It's you dumbo!no its not
Because on set measure from the right and the other measures from the left
Those ones, there!
No shape does. If it has 4 sides and one pair of parallel lines it cannot have only 1 right angle, it must either have: 1) 2 right angles, 1 acute acute and 1 obtuse angle; or 2) no right angles, 2 acute angles and 2 obtuse angles; in which case it would be a trapezium (trapezoid).
Obtuse Yes, For a line set that has an angle greater than 90 degrees, the line set is "OBTUSE". For a line set that has an angle less than 90 degrees, the line set is "ACUTE". For a line set that has an angle equal to 90 degrees, the line set is "RIGHT ANGLE".
It is a trapezoid and its other 2 angles are obtuse and acute
Assuming you've got a 180o protractor (and not a 360o angle measurer).To measure an acute, right or obtuse angle (ie 0o to 180o):Place the centre mark of the protractor on the centre of the angle (ie where the arms of the angle meet)Put one of the base lines (which will be marked 0o and 180o) on one of the arms of the angle, so that the other line of the angle is within the scale of the protractor.Use the scale which starts with 0o on the first arm to read off the angle to the other arm.To measure a reflex angle (ie 180o to 360o):Place the protractor centre as abovePut the base line as aboveUse the scale which starts with 180o on the first arm to read off the angle to the other arm.Add 180o to the angle found in step 3.
It could be a trapezoid having 2 right angles, an obtuse angle and an acute angle
A polygon with four or more sides can meet all of the requirements.
A protractor is used to draw a right angle of 90 degrees.