Question

A plam Tree stans on the bank of river, A post is fixid in the earth on the other bank, just opposite in the plam tree. On moving 7√3metres from the post along the bank, it is found that the tree makes an angel of 60°at that point with respect to this bank. Then the width of the river is a) 20 metres b) 21meters c) 22 meters d) 24meaters (MCQ) ​

Answer 1

Step-by-step explanation:

Let the width of the river be AB. A is the position of palm tree and B is the position of the post. <br> As per question. <br> if BC =

m, then

. <br> Now, from the right-angled triangle ABC, we get, <br>

<br> or,

or, AB = 21. <br> Hence the width of the river is 21 metres

Answer = 21 metres...

Answer 2

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A plam Tree stans on the bank of river, A post is fixid in the earth on the other bank, just opposite in the plam tree. On moving 7√3metres from the post along the bank, it is found that the tree makes an angel of 60°at that point with respect to this bank. Then the width of the river is a) 20 metres b) 21meters c) 22 meters d) 24meaters (MCQ)