Question

Write a java program to find the area for the following :1)area of rhombus =1/2*diagonal1* diagonal 2. 2)areaof trapezium =1/2*height *(a+b) .3)area of circle =pie*r*r. ​

Answer 1

$\huge\underline\mathfrak\pink{ANSWER}$

1. Area of Rhombus

public class area

{

public static void main(String args[])

{

int d1 = 12;

int d2 = 13;

int area = 1/2*d1*d2;

System.out.println("The area of rhombus="+area);

}

}

2. Area of trapezium

public class trapezium

{

public static void main(String args[])

{

int h = 10;

int a = 5;

int b = 6;

int area = 1/2*h*(a+b);

System.out.println("The area of trapezium="+area);

}

}

3. Area of circle

public class circle

{

public static void main(String args[])

{

int r = 7;

double pie = 3.14;

double area = 3.14*r*r;

System.out.println("The area of circle="+area);

}

}

Hope this answer will help you!!❤✌

please mention the methods also as there are many ways to run a java program.

I have used the simplest method hope it helps!!❤✌

Answer 2

import java.util.*;

public class Area

{

public static void main (String args[])

{

Scanner in= new scanner (System.in);

int d1,d2, h, a , b, rd;

double r, t, c;

System.out.println("enter the values of the diagonals of rhombus, the values of the parallel sides and height of trapezium and the radius of the circle :");

d1 = in.nextInt();

d2 = in.nextInt();

h = in.nextInt();

a = in.nextInt();

b = in.nextInt();

rd = in.nextInt();

r = (1/2*d1*d2);

t = (1/2*h*(a+b));

c = (22/7*r*r);

System.out.println("Area of rhombus = " +r );

System.out.println("Area of trapezium =" +t );

System.out.println("Area of circle =" +c);

}

}