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21 August, 19:10

Two lights will be arranged on a two-dimensional plane. The vertical distance between the two lights is stored in the double variable a. The

horizontal distance between the two lights is stored in the double variable b.

The straight-line distance between the two lights is given by the formula

ſa² + b²

Write a code segment that prints the straight-line distance between the two lights according to the formula above.

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  1. 21 August, 21:23
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    double a;

    double b;

    double distance = Math. sqrt ((Math. pow (a, 2) + Math. pow (b, 2));

    System. out. println ("The distance is: " + distance);

    Explanation:

    The code snippet is written in Java.

    First, variable a is declared as a type of double and variable b is also declared as a type of double.

    The given formula for the distance is:

    √ (a² + b²)

    So we use the inbuilt function of Java to calculate the power and the square root.

    Math. sqrt is to find the square root and it returns a value of type double.

    Math. pow is use to calculate the value of a² and b².

    a² = Math. pow (a, 2)

    b² = Math. pow (b, 2)

    Then Math. sqrt is applied to the sum of Math. pow (a, 2) and Math. pow (b, 2), the value is assigned to distance of type double.

    The value of distance is now displayed to the user:

    System. out. println ("The distance is: " + distance);
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