Science Fair

How to Measure Height – Follow the Trigonometry


Tanmay and Aditya from Udaipur English Medium High School Tripura made a project by using it we can measure the height of an object using a simple method. Normally we use length base technique to measure the height of an object, but in this model, they have used trigonometric expansion formula i.e. Height=1/( Cotα – cotβ), where the α & β are the angles between the top of object and protector respectively. They also proved this formula by using right angle triangle ABC as shown. We can also measure the height of object which is lower than this model, for that they use two circular shape protector to measure the angle, to know the value of denominator we can use a scientific calculator.

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