The track has 6 lanes that are each 1 meter in width.

a. What is the outer perimeter of the track? Round your answer to the nearest meter.

The outer perimeter is about how many meters.

Step-by-step explanation:

we know that

An Olympic 400 meter track is made up of two straight sides, each measuring 84.39 meters in length, and two semi-circular curves with a radius of 36.5 meters as pictured below

The outer perimeter of the track is equal to :

The sum of the two straightaway sections of the track plus the two semi-circular sections (can be joined to form a circle)

Note: The radius of the outer circle is equal to the inner radius plus the number of lanes multiplied by one meter each

so

Round  to the nearest meter.

rounding to the nearest thousandth would be 452,000