Usually there are. For example - and assuming there is no air resistance, and that source and target are at the same height - if an angle of 40 degrees (45 minus 5) will hit the target, then an angle of 50 degrees (45 plus 5) will also hit it.
no.
acute
It depends whether you mean 3 is an angle or not And if it is it is 90 + 180 + 3=273.
obtuse angle
The angles are supplementary if they have a sum of 180 degrees.
It is an exterior angle and an interior angle plus an exterior angle add up to 180 degrees
1 plus 2 is equal to 3
If the iron has an "A" on the sole, it's an "Approach" wedge, otherwise known as the "Gap" wedge. It fills the gap between pitching wedge and sand wedge. It is usually 52 degrees of loft, plus or minus a degree. It's a great asset on the course. I carry one instead of carrying a 4 iron.
In mathematics, an obtuse angle is defined as an angle greater than 90° and less than 180°. A right angle is 90°. An acute angle is greater than 0°, but less than 90°. Therefore, a 90° right angle plus any acute angle will always fulfill the requirements of an obtuse angle.
Acute
Plus and minus.