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How could you use a piece of string thumbtack and a pencil to construct a circle with radius AB?
Wiki User
∙ 7y ago
Loop the string around the thumbtack and the pencil so that the distance from the tack to the pencil point is AB units. Fix the thumbtack to where you want the centre of the circle. Using the pencil, and with the string taut, mark its positions. These will lie on a circle with radius AB.
Wiki User
∙ 7y ago
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How do you construct a circle that has radius with an equal length to the given line segment?
Adjust the compass to the given line segment then construct the circle.
How can you use a compass to draw a circle if you know its raduis or diameter?
If you know the radius place the compass point on a ruler and the pencil end the radius distance away from it. Then put the point on the paper and spin to draw the circle. If you know the diameter divide by two to get the radius and place the compass point on a ruler and the pencil end the radius distance away from it. Then put the point on the paper and spin to draw the circle.
How do draw a circle with a compass?
To draw a circle with a compass, first set the distance between the point and the pencil of the compass using a ruler. This distance is the radius. Now, place the point on the paper where you want the center of the circle. Spin the compass around the point, lightly dragging the pencil on the paper, and you will have a circle.
How do you construct the triangle if its sides are not given and the measures of angles are 50 60 and 70 the radius of the circumcircle is 32?
1) Draw a circle of radius 32 2) Draw a radius (meeting the perimeter at A) 3) Based on the radius, construct an angle at the centre of the circle of 100° - draw a second radius (meeting the perimeter at B) 4) Based on the second radius, construct an angle at the centre of the circle of 120° - draw a third radius (meeting the perimeter at C) Note : the angle between the third and first radii measures 140°. 5) Draw chords joining A to B, B to C, and C to A. The triangle ABC has angles measuring 50°, 60° and 70°. NOTE : The process is based on the Theorem that the angle subtended by an arc at the centre of a circle is twice the angle subtended at any point on the circumference.
How do you divide a circle with 9cm diameter in three equal parts?
Construct a circle with a 4.5 radius. The circle's circumference is 360 degrees. So mark out 3 by 120 degrees on the circumference and join them to the centre of the circle which will divide the circle into three equal parts.
How do you construct a circle that has radius with an equal length to the given line segment?
Adjust the compass to the given line segment then construct the circle.
You exert a force of 25N on the head of a thumbtack the head of the thumbtack has a radius of 5mm what is the pressure on your thumb?
25N
You exert a force of 23 N on the head of a thumbtack The head of the thumbtack has a radius of 4 mm What is the pressure on your thumb?
Pressure equals force/area. Force equals 23 Newtons (N) and area of a circle equals 3.14*radius^2. Therefore pressure equals .46N per mm. l
How many radius in a circle?
It depends on how sharp your pencil is! (A boring person would say "infinity")
How can you use a compass to draw a circle if you know its raduis or diameter?
If you know the radius place the compass point on a ruler and the pencil end the radius distance away from it. Then put the point on the paper and spin to draw the circle. If you know the diameter divide by two to get the radius and place the compass point on a ruler and the pencil end the radius distance away from it. Then put the point on the paper and spin to draw the circle.
How do you draw the circle with radius 30cm?
-- Stick a nail into a board. -- Tie a piece of thread around a pencil. -- 30 cm from the pencil, stick the thread to the nail. -- Draw a line on the board with the pencil. Keep the thread tight and go all the way around the nail. -- The line is a circle with radius 30 cm.
How do draw a circle with a compass?
To draw a circle with a compass, first set the distance between the point and the pencil of the compass using a ruler. This distance is the radius. Now, place the point on the paper where you want the center of the circle. Spin the compass around the point, lightly dragging the pencil on the paper, and you will have a circle.
How do you construct the triangle if its sides are not given and the measures of angles are 50 60 and 70 the radius of the circumcircle is 32?
1) Draw a circle of radius 32 2) Draw a radius (meeting the perimeter at A) 3) Based on the radius, construct an angle at the centre of the circle of 100° - draw a second radius (meeting the perimeter at B) 4) Based on the second radius, construct an angle at the centre of the circle of 120° - draw a third radius (meeting the perimeter at C) Note : the angle between the third and first radii measures 140°. 5) Draw chords joining A to B, B to C, and C to A. The triangle ABC has angles measuring 50°, 60° and 70°. NOTE : The process is based on the Theorem that the angle subtended by an arc at the centre of a circle is twice the angle subtended at any point on the circumference.
What is half of a diameter of a circle called?
The radius of the circle.
How do you divide a circle with 9cm diameter in three equal parts?
Construct a circle with a 4.5 radius. The circle's circumference is 360 degrees. So mark out 3 by 120 degrees on the circumference and join them to the centre of the circle which will divide the circle into three equal parts.
How do you make a compass with a magnetized nail and stringand plastic jar with lid and tape?
The idea is to draw a circle (two actually), using the ends of the paperclip to establish the radius of the circle, one pencil to anchor an end of the paperclip as the center of the circle, and a second pencil at the opposite end of the paperclip to draw the circle. Step by step, with the following diagram of characters, where the 'x' shows the place of the pencil that does not move, as the center of the circle, 'y' shows the place of the second pencil that moves to draw the small circle, and 'z' shows the place of the second pencil that moves to large small circle: (x______y)__z) # Place the paperclip on a piece of paper; # Put the first pencil inside the end of the paperclip that has just one loop ('x' above in the diagram). This pencil stays put, and is the center of the circle; # Put the second pencil inside either of the loops at the other end of the paperclip. Move this second pencil to draw a circle.
Wha is the radius of a circle?
The radius of a circle is half the circle's diameter
