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point of intersection of 2 straight lines.
What else can I help you with?
What angle is greater then an obtuse angle?
If by "then" you meant "than", then the answer could be a straight angle.
why do we have to subtract to find the missing angle?
That's how its meant to
Is there such thing as a strait angle?
I think you meant straight angle.Yes, there is, and (not surprisingly) a straight line with an angle of 180o
Is there an angel called Rachel Jones?
A Rachel Jones angle does not exist. However, I wonder you may have meant "angel", not "angle"...
What is meant by term angle?
point of intersection of 2 straight lines.
How many angles in a obtuse angle?
An obtuse angle is only one angle, however if you meant 'how many degrees?' then an obtuse angle contains more than 90 and less than 180 degrees..
Can an isosceles triangle be similar to a right triangle?
If you meant right angle then yes
Does a salene have a right angle?
If you meant scalene triangle, then it may have a right angle. By definition, a scalene triangle is a triangle with no angle or side measures that are the same. For example, a 30,60,90 triangle is scalene.
What is the messure meant of an obtuse angle?
Greater than 90, less than 180.
What is meant by included side and included angle in geometry?
The common leg of two angles.
What is meant by the critical angle?
A 'critical angle', is bascially the smallest angle of incidence for which light can be totally reflected. Incidence is the arrival of a particle or beam of light at a surface. I.e. If a beam of light hits a desktop at the angle of 45 degrees, the angle of incidence will be 45 degrees.
How many sides does a regular polygon have if the measure of an exterior angle is 165 degree?
There is no such polygon but if you meant an interior angle of 165 then it will have 360/15 = 24 sides
