A girl of height 90 CM Is woking away from the base of a lamp post at a speed of 1.2 M/s. if the lamp 3.6 m above the ground, find the length of her shadow after4second?
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It from class 10th's math ncert book example no.7 of chapter no.6 (triangle)
It from class 10th's math ncert book example no.7 of chapter no.6 (triangle)
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