The circular measure of an angle of an isoceles triangle is 5π/9. Circular measure of one of the other angles must be
Q. The circular measure of an angle of an isoceles triangle is 5π/9. Circular measure of one of the other angles must be
Answer: $latex \frac{2\pi }{9}&s=1$
Notes: Sum of remaining two angles = $latex \pi -\frac{5\pi }{9}=\frac{4\pi}{9}&s=1$ ∴ Each angle = $latex \frac{1}{2}\times \frac{4\pi }{9}=\frac{2\pi }{9}&s=1$ Hence option [B] is the right answer.