draw a base and use this to draw an equilateral triangle each angle of an equilateral triangle adds up to 60 degrees. To have an angle of 120 degree use this angle and then draw another side of a triangle next to it to get a 120 degree angle.
45 degree
70
20
Each angle is 90 degrees. All angles are 360 degrees.
(180 - 78) / 2...
55 degrees because there are 180 degrees in a triangle
draw a base and use this to draw an equilateral triangle each angle of an equilateral triangle adds up to 60 degrees. To have an angle of 120 degree use this angle and then draw another side of a triangle next to it to get a 120 degree angle.
Each angle in a square is a right angle, or a 90 degree angle.
45 degree angle
A 140 degree angle is about half way between a 90 degree angle, which has lines that are perpendicular to each other, and a 180 degree angle, which is a straight line. A 140 degree angle is an obtuse angle which has a line a little over half way between the 90 degree and 180 degree angles.
15 degrees. A bisected 60 degree angle makes 2 30 degree angles by definition of an angle bisector, then a 30 degree angle makes 2 15 degree angles by definition of an angle bisector.
Remember the equation. Exterior Angle = 360/n (No. of sides) Hence Ext. Ang. = 360 / 18 Ext. Ang. = 20 degrees. Hence the corresponding Interior Angle will = 180 - Exterior Angle. Int. Ang. = 180 - 20 = 160 degrees.
I need to know how to find each angle measured to the first degree. Such as: Sin B= 0.4848
An angle bisector divides an angle into 2, in this case of 45° each
45 degree
70