Find the square root of each of the following numbers by Division method.
(i) 2304 (ii) 4489 (iii) 3481 (iv) 529
(v) 3249 (vi) 1369 (vii) 5776 (viii) 7921
(ix) 576 (x) 1024 (xi) 3136 (xii) 900
An aeroplane flying horizontally at a height of 2500m above the ground is observed at an elevation of 60°.After 15 seconds, the elevation is observed to be 30°.Find the speed of the aeroplane in km per hour?
A ladder leans against a wall making an angle of 45° with the ground.It reaches(√3-√2)m higher when the angle with the ground is made 60°.How long is the ladder?
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