Yes. All radii of the same circle have the same length.
Yes, providing that the radii are all in the same circle
No. To be similar ALL lengths must be in the same ratio. If two cylinders have the same radii, but different heights then the radii have one ratio (1:1) but the heights have a different ratio; thus they are not similar.
The sum of two radii of a circle is the same as the diameter of the circle.
They must have all angles which are the same, all of whose straight lines are in the same ratio and whose curves have radii of curvature in the same ratio.
Yes. All radii of the same circle have the same length.
Yes, providing that the radii are all in the same circle
yes
Yes, all radii of a circle have the same length. One often thinks of the radius as being this length.
yes
No they have different heights and radii.
Yes providing that they are in the same circle
Yes in a particular circle
Yes, all radii of a given circle have the same length. A circle is defined as all the points on a plane that have a specified distance from a given point, called the center. Any segment from the center to the circle is called a radius (plural radii). Thus, by definition, all such segments (all radii) have the same length.
The plural of 'radius' is 'radii', not 'radiuses'. A circle has an infinite number of radii, but they are all of the same length.
NO. All the radii of a circle are of exactly the same length. In fact, that is the definition of the locus of a point describing a circle.
No. To be similar ALL lengths must be in the same ratio. If two cylinders have the same radii, but different heights then the radii have one ratio (1:1) but the heights have a different ratio; thus they are not similar.