An acute angle that is 1/4 of a right angle
A 90 degree angle is a right angle.
118 degree angle
A 22 degree angle is an acute angle
The supplementary angle to a 145 degree angle will be a 35 degree angle because 145 + 35 = 180.
Straight angle, which is 180 degree, obtuse angle, which is 179 degree to 91 degree, right angle, which is 90 degree, and acute angle, which is 89 degree to 1 degree.
To construct a 225-degree angle, start by drawing a straight line to represent a base. Then, use a protractor to measure 225 degrees from one end of the line. Alternatively, you can first construct a 90-degree angle, then measure an additional 135 degrees (which is 225 degrees minus 90 degrees) on the opposite side of the base line. Finally, draw a line through the point marking the 225 degrees to complete the angle.
Sin(-225) = 0.7071 ... = 1/sqrt(2) = sqrt(2) / 2
Describing the process in words is much more difficult than doing it. So I suggest you sketch out the steps as described. It will be much clearer that way! 1. Start with a straight East-West line. 2. Draw a line perpendicular to it - this will be North-South. 3. Now bisect the angle between West and South. This line will run from the centre to the SouthWest! 4. The angle between the line going East and this last line is 225 degrees.
The complement of a 55 degree angle is a 35 degree angle
A 12 degree angle is an acute angle.
A 90 degree angle is a right angle.
118 degree angle
A 22 degree angle is an acute angle
The supplementary angle to a 145 degree angle will be a 35 degree angle because 145 + 35 = 180.
Straight angle, which is 180 degree, obtuse angle, which is 179 degree to 91 degree, right angle, which is 90 degree, and acute angle, which is 89 degree to 1 degree.
The supplement of a 35 degree angle would be 145 degree angle.
45 degree angle