The distance from the Earth to the Sun is 93 million miles. Assume it takes 365 days for the Earth to travel once around the Sun the Earth travels in a circle with the Sun at the centre. Work out the average speed of the Earth in miles per hour
1st calculate: 93 000 000 × 2π 2nd calculate: 365×24 Then divide the two values: 186 000 000π÷8760 = 66705 (5 s.f.)
