diameter is the distance across a circle, from one side to another (radius is 1/2 way across a circle). To determine the size of 1 diameter, you would first have to know the size of the circle
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 .
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.
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.
Congruent can mean corresponding to (or agreeing with); or in mathematics, it can mean identical in shape and size. For example, two circles are congruent if they have the same size, while two line segments are congruent if they have the same length. So it basically means that it has the same shape and size.
Two line segments of the same finite size.
congruent line segments- line segments that have the same lengths.
Equilateral Triangle.
Yes. The larger the circle you're measuring, the more accurate that pi will be.
lenth
diameter is the distance across a circle, from one side to another (radius is 1/2 way across a circle). To determine the size of 1 diameter, you would first have to know the size of the circle
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.
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.
The size of the circle is a function of the height of the rectangle.
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.
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 Ο times the size of the diameter (if you don't know what those two things are ignore this)
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 .