in java - Simple geometry can compute the height of an object from the object\'s

Question

in java - Simple geometry can compute the height of an object from the object's shadow length and shadow angle using the formula: tan(angleElevation) = treeHeight / shadowLength. Given the shadow length and angle of elevation, compute the tree height.

import java.util.Scanner;
import java.lang.Math;

public class TreeHeight {
public static void main(String [] args) {
double treeHeight = 0.0;
double shadowLength = 0.0;
double angleElevation = 0.0;

angleElevation = 0.11693706; // 0.11693706 radians = 6.7 degrees
shadowLength = 17.5;

System.out.print("Tree height: ");
System.out.println(treeHeight);

return;

Explanation / Answer

ans:

// import java.util.Scanner;
//import java.lang.Math;
public class TreeHeight{
public static void main(String [] args) {
double treeHeight = 0.0;
double shadowLength = 0.0;
double angleElevation = 0.0;
angleElevation = 0.11693706; // 0.11693706 radians = 6.7 degrees
shadowLength = 17.5;

treeHeight=shadowLength*Math.tan(angleElevation);
System.out.print("Tree height: ");
System.out.println(treeHeight);
return;
}
}

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