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A ladder leaning against a wall makes an...

A ladder leaning against a wall makes an angle `theta` with the horizontal ground such that `sin theta= 12/13`. If the foot of the ladder is 7.5 m from a wall, then what is the height of the point from where the top of the ladder touches the wall?
किसी दीवार पर झुकी हुई एक सीढ़ी क्षेतिज भूमि के साथ `theta` कोण बनाती है जो इस प्रकार है कि `sin theta= 12/13` है | यदि सीढ़ी का तल दीवार से 7.5 मीटर है, तो उस बिंदु की ऊंचाई ज्ञात करें जहाँ से सीढ़ी का शीर्ष भाग दीवार को स्पर्श करता है |

A

15m

B

8m

C

18m

D

12 m

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