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By looking at it you cannot tell if an tell if the angle is 89.5 degrees, 90 degrees or 90.5 degrees. In exams you will come across angles which look like they are right angles but, in fact, they are not.
You can try measuring the angle using a protractor but only if you are very careful. If you have the measures of the sides, you can use Pythagoras. If the sum of the squares of the lengths of the two smaller sides is the same as the square of the length on the largest side then the angle is 90 degrees. If the sum is larger then the angle is greater than 90.
What else can I help you with?
Is 90 degrees a angle?
of course! anything up to 360 degrees is a regular angle. higher than 360 is a vertex angle.
What are the measure of angles?
An acute angle is lower than 90 degrees. An obtuse angle is higher than 90 degrees. But lower than 180 degrees. A right angle is exactly 90 degrees. A straight angle is exactly 180 degrees. A reflex angle is higher than 180 degrees. A Circle is exactly 360 degrees.
Is a obtuse higher than a acute or a right angle?
Acute angles are any angle below 90 degrees, A right angle is 90 degrees, and an obtuse angle is anything above 90 degrees.
How do you know if an angle acute?
by measuring the angle and if it is below 90 degrees it is acute if it is higher than 90 degrees its obtuse
How can I tell if an angle is a right angle?
Measure it and if it is 90 degrees, then it is a right angle
Can triangle have an obtuse and a right angle?
no because all of the angles in a triangle need to ad up to 180 degrees. a right angle is of course 90 degrees and an obtuse angle is any number higher than 90 degrees. therefor you cannot have a 90 degree angle and have another angle with a degree higher than that because 90+90=180 degrees.
What is 90 angle degrees?
A right angle is an angle of 90 degrees.
How many degrees is a right angle?
90 degreesThere are 90 degrees in a right angle.There are 90 degrees in a right angle
How many degrees is the right angle?
there is 90 degrees in a right angle derdder :):):):):):):):):):):):):)
What angle is exactly 90 degrees?
A right angle is an angle of 90 degrees.
A right angle contains degree?
A right angle is 90 degrees.
What does 90 d in a R A stand for?
90 degrees of a right angle.
