Properties of Triangles 3 Question 14

14. A polygon of nine sides, each of length 2 , is inscribed in a circle. The radius of the circle is… .

(1987,2M)

Analytical & Descriptive Questions

Show Answer

Answer:

Correct Answer: 14. cosec20

Solution:

  1. Here, central angle =3609=40

In ACM,

1r=sin20

r=cosec20

Radius of circle =cosec20



जेईई के लिए मॉक टेस्ट

एनसीईआरटी अध्याय वीडियो समाधान

दोहरा फलक