Respuesta :
Answer:
Length of equator = 40212.39 km
Step-by-step explanation:
Length of equator is perimeter of the circle with radius of earth.
Radius of earth = 6400 km
Perimeter of circle = 2πr
Here r = 6400 km
Substituting
Perimeter of circle = 2πr = 2π x 6400 = 12800π km = 40212.39 km
Length of equator = Perimeter of circle = 40212.39 km
Length of equator = 40212.39 km
Answer:so the hemispheres is the radius
Step-by-step explanation:you have to divide the radius