Please go on. What is "circle F" ? And what are the choices ? This has all become quite mysterious.
Such a circle is impossible. The radius of a circle is half its diameter.
32
4
The 2001 Ford F-150's turning circle is 40.5 ft..
The 2005 Ford F-150's turning circle is 41.8 ft..
The 2006 Ford F-150's turning circle is 41.8 ft..
The acceleration of a car moving in a circle with uniform speed is directed towards the center of the circle and is called centripetal acceleration. This acceleration is given by the formula a = v^2/r, where v is the speed of the car and r is the radius of the circle.
It is the area of a circle because pi*32 = 28.274 square units to 3 decimal places.
It doubles too. The diameter is always twice the radius. Multiplying either of the two by any factor f automatically multiplies the other one by the same factor.
If an object moves in a circular path it goes faster when the radius gets smaller according to the equation of circular motion F=mv^2 /r
#include<stdio.h> main() { int r; float area; clrscr(); printf("enter the value of r\n"); scanf("%d",&r); area=3.142*r*r; printf("area of circle=%f\n",area); getch(); }