Draw a straight horizontal line, and a vertical line in the middle of it. Now line these up the the lower edge of your protractor, with the vertical line in the middle of your protractor (at the 90 degree marking). Now, find the 75 degree marking on the protractor, and mark on the piece of paper where it falls. Draw a line from centre of your horizontal line, to the mark of where 75 degree is. You're done!
Use a protractor and a straight edge to construct a 75 degree angle
A 75 degree angle.
The complementary angle is 15 degrees.
15 degrees
105 degrees
Use a protractor.
Use a protractor and a straight edge to construct a 75 degree angle
With a protractor and a straight edge or bisect an angle of 75 degrees.
first draw a ray .
Draw a line segment AB. Put your compass point at B and stretch the compass out until it is at point A. Now draw a circle. Now move the compass point to B, leaving the compass opening the same as before and draw another circle. The circles will intersect in two points. Call them C and D. Draw CD and name its intersection with AB as the point E. angle CEB is a right angle. Now you need to bisect the 90 degree angle you just constructed to get two 45 degree angles. Look in your book as to how to bisect an angle. The angle CAB = 60 degrees. So bisect it to get a 30 degree angle and then bisect it to get a 15 degree angle. You can get a 105 degree angle by adding the 90 degree angle and the 15 degree angle. Similarly, you can get a 75 degree angle by subtracting the 15 degree angle from 90 degrees. Look in your book on how to copy an angle.
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An angle of 75 degrees is an acute angle
No, but 75 degrees is an acute angle.
The supplement of a 75-degree angle is the angle that, when added to 75 degrees, equals 180 degrees (a straight line). To find the supplement of a given angle, you subtract the given angle from 180 degrees. Therefore, the supplement of a 75-degree angle is 105 degrees.
105
30
The sum of an angle and its complement is 90 degrees. So the unknown angle must be 90 - 75 = 15 degrees.