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then D can be used ......
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∙ 13y ago
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How do you find a 30 degree angle without a protractor?
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.
How do you construct 60 degree angle triangles?
You should use a protractor.
How do you make a 60 degree angle?
With a protractor or construct an equilateral triangle which has 3 equal interior angles of 60 degrees
How could you construct an equilateral triangle on any given line segment?
The answer depends on what instruments you have available. If you have a protractor, draw an inward facing 60 degree angle from each end of the line segment, and extend the lines until they meet.
How can you construct a 120 degree angle without using a protractor?
Construct an equilateral triangle which will have 3 equal interior angles of 60 degrees and 3 equal exterior angles of 120 degrees
How do you find a 30 degree angle without a protractor?
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.
How do you construct 60 degree angle triangles?
You should use a protractor.
How do you make a 60 degree angle?
With a protractor or construct an equilateral triangle which has 3 equal interior angles of 60 degrees
How do you draw 150 degree with set square?
Assuming the set square has angles of 30o 60o and 90o.... You can draw a right angle without any problem. That leaves 60 degrees left to draw so - place the 60 degree corner on the junction of the 90 degrees and draw another line. This gives you a total angle of 150.
How could you construct an equilateral triangle on any given line segment?
The answer depends on what instruments you have available. If you have a protractor, draw an inward facing 60 degree angle from each end of the line segment, and extend the lines until they meet.
How do you make an angle without using compass and protractor?
By drawing regular polygons as for instance a square will have 4 equal right angles and an equilateral triangle will have 3 equal 60 degree angles.
How can you construct a 120 degree angle without using a protractor?
Construct an equilateral triangle which will have 3 equal interior angles of 60 degrees and 3 equal exterior angles of 120 degrees
How can you build a regular triangle using the protractor?
Draw a line of any length. Set the protractor at one end of this line and draw an angle of 60 degrees - measuring angles from the other end of the line. Move the protractor to the other end of the original line and repeat. If necessary extend the lines of the angle until they meet. The three lines will form a regular (equilateral) triangle.
Show how to construct a 120 degree angle?
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.
How do you construct 105 degree angle with using compass?
with compass.........at 90+60degree angle,,,,,,,,, * * * * * and 90 + 60 = 105??? You need to draw a 90 degree ange and bisect it to give a 45 deg angle. Then add a 60 degree angle. 45 + 60 = 105.
How do you draw a 105 degrees angle?
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.
What is an arc in math?
An arc is a portion of the circumference of a circle, and the circumference of a circle is the distance round a circle. So an arc looks like a semicircle, it is part of the circumference. Arcs are often used in constructions, for example if you were asked to draw an angle of 60 degrees without a protractor you would draw arcs following a special method. Arcs are drawn using a tool called a pair of compasses.
