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What is the circumference of a circle if the diameter is 40cm?
The circumference (C) of a circle is given by the formula C = 2πr But, the diameter equals twice the radius so we can write C = πd....where d is the diameter. So, C = 40π = 125.664 (3dp)
Write a c program to find the area and perimeter of circle?
Learn c programming and geometry. It will be easy when you know both.
Write a program to calculate the area of a circle?
#include<stdio.h> void main() { int r=10; float pi=3.14,c; c=pi*r*r; printf("Area of the circle=%f",c); getch(); }
What is a trademark with a c and a circle around it?
A c with a circle around it is the 'copyright' symbol.
What a relationship between pi and circle?
Pi ( 3.142 approx.) is the amount of times the diameter of a circle can be measured along the circumference of a circle. We know that Pi multiplied by the diameter of the circle is equal to it circumference. So we write C=PiD This means, as it says above, that a certain number of "Pi's" will be equal to the circumference.
