D P Q x 2 x 1 y 2 y 1 2. C What is the distance between two points on a wave of wavelength 20cm that are 10cm apart. Simply use the formula d x 2 - x 1 2.
Draw a right-angled triangle with the line formed by the points the distance between the two points can be calculated by finding the horizontal x 2 - x 1 and vertical.
For instance imagine youre a drag racer. Simply use the formula d x 2 - x 1 2. Now we substitute the values into the Distance Formula then simplify to get the distance between the two points in question. C What is the distance between two points on a wave of wavelength 20cm that are 10cm apart.