a reflects angle is an angle that is bigger than 180 degrees but less than 360 degrees..i had trouble on this one too..:P hope this helped!!
Chat with our AI personalities
you put it at a 90 degree angle
A right angle is a angle with 90o
so that light bounces off one to the other lets say you want to look up to see what is in front of you. If you look up at a angle that is completely vertical, that degree measurement would be 90*. the horizontal plane would be 0*. the angle in-between the two is 45*. so if you look up, at 90* at a mirror that is placed at 45* then you will see what ever is in the mirror at 0* in front of the mirror. If the mirror was at lets say 75* you would look up at the sky, if the angle was at 30* you would look at the water.
what angle does a hemisphere have what angle does a hemisphere have what angle does a hemisphere have
So basically , you have an right angle and another angle . You draw an right angle over the angle your looking at and if its smaller than the right angle then its an acute angle . If its bigger than the right angle then its a obtuse angle . GoodLuck!(;