Question

If michelle rollerblades around a circular track with a radius of 80 meters, how far does she skate? use 3.14 for pi. round to the nearest tenth. a 251.2m b 502.4m c 12,352m d 20,096m

Answer 1

I believe it’s A but not quite sure

Answer 2

Michell rollerblades around the circular track. Therefore she travels around the circumference of the circle

circumference is calculated using the perimeter for circles

perimeter for circle is

perimeter = 2πr

where π = 3.14 and r - radius - 80 m

substituting the values in the equation

perimeter = 2 x 3.14 x 80 m = 502.4 m

the circumference of the circel is 502.4 which is the distance she has to skate

answer is b. 502.4 m