Trigonometric Equations Question 254
Question: If $ A=30^{o},c=7\sqrt{3} $ and $ C=90^{o} $ in $ \Delta ABC $ , then a =
Options:
A) $ 7\sqrt{3} $
B) $ \frac{7\sqrt{3}}{2} $
C) $ \frac{7}{2} $
D) None of these
Show Answer
Answer:
Correct Answer: B
Solution:
- Since $ C=90^{o} $ Hence $ a=\frac{c\sin A}{\sin C}=\frac{7\sqrt{3}\sin 30^{o}}{\sin 90{}^\circ }=\frac{7\sqrt{3}}{2} $ .
BETA
