Welcome to Westonci.ca, your ultimate destination for finding answers to a wide range of questions from experts. Experience the convenience of finding accurate answers to your questions from knowledgeable experts on our platform. Explore comprehensive solutions to your questions from a wide range of professionals on our user-friendly platform.

Find the radius of a circle in which the central angle, a, intercepts an arc of the given length s.
a = 30°, s = 87 km
The radius is =__Km