It means to multiply the radius by itself: radius x radius
The radius of the circle is half the diameter of the circle. 30mm radius would mean 60mm diameter or 6cm.
I'm not sure what you mean. If the radius is 5, the circumference is 10pi. (about 31 and a half) If the circumference is 5, the radius is 5 divided by 2pi. (about four fifths)
What do you mean by the radius of 4? Radius is used in circles. Do you mean that the breadth is 4? If so you can use Pythagoras's Theorem to find the 'slant height' (provided that it is a right-angle triangle) (slant height)2=52+42
2 x Pi x r is equal to the circumference of a circle whose radius is equal to r.
It means to multiply the radius by itself: radius x radius
If you mean the radius of a circle then it is half of the circle's diameter
The radius of a circle is half of its diameter
If you mean the radius of a circle then it is half of the circle's diameter
Mercury has a mean radius of:2,439.7 Km.1,516 miles.
Radius times two (r x r)
== A radius is half of diameter,the formula of radius== d/2 ===
Not sure about the eartn, but earth has a mean radius of 6370 km.
R = Radius The radius is half the diameter of a circle.
Mars is. Mars has a mean radius of 3397km while our moons mean radius is 1737km.
I guess you mean:"How do you find the radius if you are given the diameter?"You take the diameter and divide it by 2.
The average radius of Mars is about 3,389.5 kilometers.