**Here are 10 examples of using the word «radius» in English:**
1. The explosion damaged buildings within a radius of one kilometre.
2. The park covers an area with a radius of about 5 square kilometres.
3. The police cordoned off the crime scene, creating a radius of exclusion.
4. The hospital has a radius of service covering several districts.
5. The search for the missing person is being conducted within a radius of 10 miles.
6. The building's security system has a radius of coverage of up to 500 metres.
7. The hurricane's wind gusts were felt in a radius of over 100 miles.
8. The construction project will affect a radius of streets around the site.
9. The restaurant's delivery service covers a radius of up to 5 miles.
10. The school's attendance area includes a radius of approximately 3 miles.