The longest distance across a circle is its diameter
In basic terms...no. A diameter only applies to circles or spheres. The diameter is the distance across the middle at the widest point and the radius is half of the diameter.
Tangent circles are circles that touch one another without crossing. The distance between the centres of the circles must be equal to the difference or the sum of their radii.
The circumference of a circle (the distance around the perimeter) is calculated by mulitplying a constant value called Pi (which equals 3.14 and is true for all circles), times the circle's diameter (distance across the center).Therefore, to answer your question, C = Pi x D, or 3.14 x 20in, or 62.8 inches.
Because any 'Great Circle' is the shortest distance across a sphere. Where the Earth is concerned , all the meridians and the Equator are Great Circles. The Plane of a 'Great Circles ' 'cut' the sphere into two equally sized hemispheres. NB Other than the Equator all the latitudes are NOT great Circles.
nothing
All circles are plane curves drawn by a point that rotates 360 degrees at a constant distance from a fixed point.
roughly 1700 miles
When they have the same centre. As a consequence, the distance between the two circles, along any common radial ray, is a constant.
The distance across Europe is approximately 6,800 kilometers, and the distance across Russia from its western border to its eastern border is approximately 10,000 kilometers. Therefore, the combined distance across both Europe and Russia would be around 16,800 kilometers.
The distance half way across a circle is the circle's radius.radias
the distance across the middle is the radius and whole distance across it is the diameter
constructive interference