Question

Which of the following expresses the number of meters a contestant must travel in a

4-lap races where the course is a circle of radius R meters?
Α. πB
B. 2 t R
C. 4 R
D. 87 R
E 12 R

Answer 1

The number of meters a contestant must travel in a 4-lap race on a circular course with a radius of R meters is 8πR.

Step-by-step explanation:

The number of meters a contestant must travel in a 4-lap race on a circular course with a radius of R meters can be found by calculating the circumference of the circle and multiplying it by the number of laps.

The circumference of a circle is given by the formula C = 2πR, where R is the radius. Therefore, the total distance traveled in the race is 4 times the circumference:

Distance = 4 × 2πR = 8πR meters.

So, the correct option is A, 8πR.