১৮ ফুট উঁচু একটি খুঁটি এমনভাবে ভেঙ্গে গেল যে, ভাঙ্গা অংশটি বিচ্ছিন্ন না হয়ে ভূমির সঙ্গে ৩০ ডিগ্রি কোণে স্পর্শ করলো। খুঁটিটি মাটি থেকে কত ফুট উঁচুতে ভেঙ্গে গিয়েছিল?
Created: 6 years ago |
Updated: 3 months ago
best ans
Let x , the height of the broken tree from ground
Therefore broken part = hypotenous = 18 - x
Sin30° = x/(18 - x)
Or, 1/2 = x/(18 - x)
Or, 2x = 18 - x
Or, 3x = 18
Or, x = 6
Md Azizur Rahman
Founder of Satt
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