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What is the radius of a circle in cm?
The radius is the straight line distance from the centre of the circle to any point on the circumference of the circle. It can be measured in 'mm', or 'inches' or other units both metric and imperial .
How do you find the size of the diameter of a circle?
From any point on the circumference of the circle, draw a line going through the center and continuing until it meets the circumference again. Measure this line. This is the diameter of the circle. If the centre is not marked, simply take a ruler and find the widest measure you can make across the circle. See the related link below, The Parts of the Circle.
How do you draw a circle with a pencil and ruler?
Use the ruler to measure the size of the circle you want - this will be a line all the way across the whole circle. Then, measure a piece of string with the ruler -- make this half the size of the original line. Use a thumbtack to tack the string in the spot you want the middle of your circle. Use a bit of tape to tape the other end onto your pencil (don't wrap it around or you will end up with a smaller circle!) Gently move the pencil around the thumbtack to make your circle.
How many inches is in 1 diameter?
The diameter of a circle is a straight line passing through the center of the circle and connecting two points on the circle. The length of the diameter is equal to twice the length of the radius of the circle. Since there are 2.54 centimeters in an inch, converting the diameter from inches to centimeters would involve multiplying the diameter in inches by 2.54.
How to find the the circumcenter of a triangle?
The circumcenter of a triangle is the center of a circle who's radius touches all three of the triangle's vertices. The circumcenter can be found using the intersection of 2 or more perpendicular bisectors. A bisector is a line perpendicular from the mid point of a triangle's line segment.To find the circumcenter of a triangle, create two bisectors by following these steps:StepsWith a compass, draw a circle from the first point in the triangle larger then the triangle.Draw the same size circle from point two.Draw the same size circle from point three.Draw a line from the two intersecting points of circle one and two.Draw a line from the two intersecting points of circle two and three.The intersection of the lines from step 4 and 5 will define the circumcenter of the triangle.
What is the definition of congruent line segments?
Two line segments of the same finite size.
Definition for congruent line segments for geometry?
congruent line segments- line segments that have the same lengths.
What type of triangle can you make with 3 line segments that are the same size?
Equilateral Triangle.
Does the size of the diameter of a circle determine the accuracy of pi?
Yes. The larger the circle you're measuring, the more accurate that pi will be.
What will the capacity of a vacuum pump and its suction line size determine?
lenth
What happens to the area of the segments between the circle and new polygon when the number of sides increases?
The areas decrease in size to a limiting value of zero - ie as the number of sides of the polygon increases it comes closer and closer to the circle.
How do you determine the size of a reduction gear box?
You can determine the circumference of a reduction gear box by multiplying its diameter by pi. This is because its outer portion is a circle.
Change the height of the rectangle in the picture to determine which of the following descriptions is accurate?
The size of the circle is a function of the height of the rectangle.
How do you draw a tangent to a circle from a point on its circumference?
Short instructions:Construct the diameter of the circle at the tangent point Construct a line at right angles to the diameter at the tangent point. this is a tangent to the circle at that point.Detailed instructions with compass and straight edge:Given: circle C with a point T on the circumference Sought: Tangent to C at TFind the center circle CPlace the needle of the compass on the (circumference of) circle C (anywhere), draw a circle [circle 1] (I think circle 1 has to be smaller than twice the diameter of circle C).Without changing the compass size, place the needle of the compass on the intersection of circles C and circle 1, draw a circle (circle 2)Without changing the compass size, place the needle of the compass on the other intersection of circles C and circle 1, draw a circle (circle 3)Connect the intersections of circle 1 and circle 2 (one is outside and one inside circle A) this we call [ line 1]Connect the intersections of circle 2 and circle 3 (also here one is outside and one inside C) [line 2]The intersection of line 1 and Line 2 is [O]. This is the center of circle CDraw a line [line 3] from [O] through [T] and beyondConstruct the diameter of the circle at [T] (the point for the tangent) and extend it beyond the circumference of circle C With your compass needle at [T] mark off equal distances on [line 3] inside and outside circle C. We call these points [4] & [5]Increase the compass size somewhat and with the needle at [4] draw a circle [circle 4]Without changing the compass draw [circle 5] centered on [5]Construct a line perpendicular to line 3 at [T]The line through the intersections of circle 4 and circle 5 is the sought tangent at [T]Note: although the instructions say "draw a circle" often it is sufficient to just mark a short arc of the circle at the appropriate place. This will keep the drawing cleaner and easier to interpret.
What does circumfrence mean?
Circumfrence is the perimeter of a circle, the line that makes a circle looks like a circle Imagine a perfect circle drawn on a piece of paper. Take the length of the line of the circle (by line I mean the part that is actually drawn on the piece of paper the ring) and there, you have the circumfrence. The circumfrence is exactly π times the size of the diameter (if you don't know what those two things are ignore this)
What is the radius of a circle in cm?
The radius is the straight line distance from the centre of the circle to any point on the circumference of the circle. It can be measured in 'mm', or 'inches' or other units both metric and imperial .
How do you construct a parallel line?
You place a ruler on a piece of paper and trace both sides. Put the point of your pair of compasses on the line and draw a circle. Then draw another circle, that is the same size, the same way further along the line. You will then be able to use your rule to draw a line that is a tangent to the two circle, and so parallel to your first line. Once you have done this you will realize that you don't need to draw a full circle just a small arc.
