Question

While flying an aircraft, a pilot looks out to the horizon. The altitude of the plane is 9.4 km. Earth has an average radius of about 6378 km. How far away is the horizon to the nearest tenth of a kilometer?

Answer 1

6387 km

Explanation:

6378 km -9.4 km =

6386.6 km

Round to the nearest tenth: 63787 km

Hope I helped, sorry if not tho