Question
Download Solution PDFএকটি সমকোণী ত্রিভুজ ABC তে B হ'ল সমকোণী, এবং tan A = 4/3। যদি AC = 25 সেমি হয়, তবে BC এর দৈর্ঘ্য কত হবে?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFপ্রদত্ত, tan A = 4/3 = BC/AB
ধরা যাক, BC = 4x এবং AB = 3x
পিথাগোরাসের উপপাদ্য দ্বারা,
AC2 = AB2 + BC2
⇒ 252 = (3x)2 + (4x)2
⇒ 625 = 9x2 + 16x2
⇒ 625 = 25x2
⇒ x2 = 25
⇒ x = 5
∴ BC এর দৈর্ঘ্য হ'ল = 4x = 4 × 5 = 20 সেমি।Last updated on Jul 19, 2025
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