Answer:
#include <iostream>
using namespace std;
int main()
{
float radius = 5.4;
float circumference = 2 * 3.14 * radius;
float area = 3.14 * radius * radius;
cout<<"the circumference of the circle is "<<circumference<<endl;
cout<<"the area of the circle is "<<area<<endl;
return 0;
}
Explanation:
Include the library iostream for using the input/output instructions.
create the main function and define the variable with value. Then,
use the formula to calculate the circumference and are of circle.


here, choose 
after that, display the result.
Note: All variable define in float type.
Answer:
CPU is considered as the brain of the computer. CPU performs all types of data processing operations. It stores data, intermediate results, and instructions (program). It controls the operation of all parts of the computer
Answer:
string ** carMakes=new string*[20];
for(int i=0;i<20;i++)
{
carMakes[i]=new string[6];
}
Explanation:
The above written piece of code is in C++ and it will declare and allocate memory on the heap for a 2-D array of strings with the number of rows 20 and number of columns 6 with name of the array carMakes.
To declare a 2-D array in C++ we use new keyword.
The answer is Insertion Point. In Microsoft Word, the insertion point is the blinking vertical line in the document. It will identify the location where you can enter or alter text on the page. When creating a new document, the insertion point is located in the top-left corner of the document.