A 1.5 m tall boy is walking away from the base of a lamp post which is 12 m high, at the speed of 2.5 m/sec. Find the length of his shadow after 3 seconds.

AA Similarity Criterion for Triangles, Application of Trigonometry in Finding Heights | PadhAiPro

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TextAA Similarity Criterion for TrianglesApplication of Trigonometry in Finding HeightsCBSE PYQ

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