Answer:
the circumference of Earth's equator is 40080 Km
Step-by-step explanation:
Hello
in this case, you have a time ( 24 hours)it is the time it takes to make a full rotation , and a speed (1670 Km per hour),just apply the  equation,
the speed of a object is given by:
\(speed=\frac{distance}{time} \\isolating distance\\speed(v)*time=distance\\d=v*t\)
Step 1
put the values into the formula
d=v*t
let
v=1670 km per hour
t=24 hours
\(d=v*t=1670 \frac{km}{hour} * 24 hours\\d=40080 Km\)
the circumference of Earth's equator is 40080 Km
Have a great day.
