1.A regular pentagon is inscribed in a circle whose radius 18cm. Find the perimeter of the pentagon.

2.Find the radius of the circle circumscribed about the triangle for which A=50deg. B=15deg a=70cm

Printable View

- Feb 7th 2010, 01:12 AMsherwin156solving a triangle >.<
1.A regular pentagon is inscribed in a circle whose radius 18cm. Find the perimeter of the pentagon.

2.Find the radius of the circle circumscribed about the triangle for which A=50deg. B=15deg a=70cm - Feb 7th 2010, 03:12 AMSolarmew

find the missing side using the law of cosine and you'll find the perimeter