a person who is half English, half Japanese, or someone who is half American, half Japanese
To bisect an angle is to divide the angle in half.
The first angle that is half as large as the other angle is 30º The other angle that is the larger is 60º
One half of a right angle is a 45 degree angle.
Half Japanese was created in 1975.
Double angle and half angle in mathematics refer to the formulas used to express trigonometric functions of angles equal to 2a or 1/2a. These are known as the double-angle and half-angle formulas.
This is best done if the complex number is in polar coordinates - that is, a distance from the origin, and an angle. Take the square root of the argument (the absolute value) of the complex number; and half the angle.
15 degrees is not a special angle, but it is half of 30, which is a special angle. If you need sin 15 you can use the half angle formula with 30 degrees.
The columns held up the roof that covered the rear half of the stage; so the columns would be about midstage on either side of the roof.
A straight angle is 180 degrees so half of that is 90 degrees of a right angle.
A bisector is a ray or segment which cuts an angle in half.
A bisector divides an angle in half (usually in the form of a line passing through the centre of the angle).