If in the open, a magnetic compass, a theodolite, etc.
If on paper, a protractor, a drawing compass, etc.
It is an angle measuring 90 degrees.
A square.
Obtuse. Any angle measuring greater than 90 degrees but less than 180 is considered obtuse. An acute angle is any angle measuring between 0 and 90 degrees. A right angle is an angle measuring exactly 90 degrees while a straight angle measures exactly 180 degrees.
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It will have 1 right angle and 2 acute angles each measuring 45 degrees.
right angle right angle
A triangle with one angle measuring 90˚ is a right triangleIt's a right triangle because the 90˚ angle is a right angle
right angle
Pythagoras discovered the means for measuring the length of sides of a right angle.
It is an angle measuring 90 degrees.
An angle measuring more than 90 degrees is obtuse. An angle measuring less than 90 degrees is acute. An angle measuring 90 degrees is right.
The definition of a right angle is an angle measuring 90 degrees. You don't have to calculate anything.
An angle measuring exactly 90 degrees is a right angle.
Each angle in a rectangle is a right angle measuring 90°.
An angle measuring 90 degrees is said to be a "right" angle.
A transverse wave is a wave that vibrates at right angles. This right angle wave goes in the direction of its propagation.
Measured in degrees a right angle is 90 (or 270 - if you are measuring backward).