73.5+16.5 = 90 degrees which is a complementary angle
false but You can find the measure of an exterior angle by using supplementary angles.
by 60 degree and 90 degree
First draw a 90 degree angle .Than draw a 20 degree angle from that 90 degree angle . Than the rest of the angle will be 90-20=70 .Now bisect the 70 degree angle we will get 70/2=35. Now add the rest of the angle means 35+20 =55 GOT 55 DEGREE ANGLE
An angle of 65° can not be trisected using a compass and straight edge.
A 127.5 degree angle can be constructed by using a protractor and a straight edge.
To draw an angle complementary to a 40-degree angle without a protractor, first draw a straight line using a ruler. Then, use a compass to mark a point on the line as the vertex of the angle. Set the compass to a width that can create an arc, and draw an arc that intersects the straight line, marking two points. Next, without changing the compass width, place the compass point on one of the intersection points and draw another arc above the line. Repeat this from the other intersection point, creating two arcs that intersect. Finally, draw a line connecting the vertex to the intersection of the arcs, which will give you a 50-degree angle, complementary to the original 40-degree angle.
By using trigonometry or using Pythagoras' theorem for a right angle triangle.
false but You can find the measure of an exterior angle by using supplementary angles.
The number 1.414... (square root of 2) is two times the cosine or sine of a 45 degree angle. The reason for this is that for a 45 degree angle, the two sides are cosine and sine, they are equal, and if you solve using the Pythagorean theorem with a hypotenuse of 1, the two sides are each (21/2)/2.
by 60 degree and 90 degree
First draw a 90 degree angle .Than draw a 20 degree angle from that 90 degree angle . Than the rest of the angle will be 90-20=70 .Now bisect the 70 degree angle we will get 70/2=35. Now add the rest of the angle means 35+20 =55 GOT 55 DEGREE ANGLE
It is easy to draw an equilateral triangle without a protractor. That gives a 60 degree angle. It is then simply a matter of bisecting the 60 degree angle, using an unmarked rule and compass, to get a 30 degree angle.
A 127.5 degree angle can be constructed by using a protractor and a straight edge.
Using a protractor is the easiest formula
An angle of 65° can not be trisected using a compass and straight edge.
A 127.5 degree angle can be constructed by using a protractor and a straight edge.
Construct 2 perpendicular lines which will meet at 90 degrees then by bisecting this angle wll give a 45 degree angle