TS EAMCET · Maths · Properties of Triangles
In a triangle , if and then
- A
- B
- C
- D
Answer & Solution
Correct Answer
(D)
Step-by-step Solution
Detailed explanation
Given: A=π6 b=7 C=43 By cosine rule, cosA=b2+c2-a22bc ⇒cosπ6=49+48−a2563 ⇒32=97−a2563 ⇒97−a2=84⇒a2=13 ⇒a=13 Also by sine rule asinA=csinC ⇒13sinπ6=43sinC ⇒sinC=12×4313 ⇒sinC=2313 Also,…
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