Please answer my question

The diameter of a wheel of a car is 42 cm. Find the distance covered by the car during the time in which the wheel makes 500 revolutions ?

66000cm/660m

Step-by-step explanation:

perimeter of a circle=pi x d

perimeter=132cm

   132 cm = 1 revolution

         x       =  500 revolution

132 x 500=66000cm

since the airplane is moving with constant speed then the distance travelled can be calculated by x=u*t

in km/h would be:

x=640*3.5=2.240 km

in m/s would be:

u=640 km/h= 640.000 m/h =640.000/ 3600 m/s =177.8 m/s

t= 3.5 h= 3.5 * 3600 s=12.600 s

then x=u*t= 177.8*12.600= 2.240.280 m

the answer is simply just 6n add the two together as they have an n