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A ladder leans against a wall, with its foot 2 metres away from the wall and the angle with the floor 40°. How high is the top end of the ladder from the ground? |
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Answer» tan 40 = \(\frac{QR}{2}\) QR = 2 × tan 40 = 2 × 0.8391 = 1.6782 Height of the ladder from ground = 1.68m |
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